Tuesday, August 6, 2019
Hyderabad city
Hyderabad city Introduction: Hyderabad, the capital city of the state of Andhra Pradesh is one of the fast growing urban assortments in India. It is located on the Deccan plateau which is in the southeast part of India and it is a typical inland city .Hyderabad has a semi-arid climate and an annual rain fall of 75 centimeters. The city of Hyderabad is famous for its lakes; it has about 5 lakes surrounding it. These lakes help in the water supply for the city of Hyderabad. Hyderabad has one of the most beautiful lakes with boating facilities for visitors. These places also offer sports like Para sailing, water scooter, etc. these lakes are home for many migrating birds. Hyderabad has a population of 5.2 million inhabitance that is the quarter of the population of the state of Andhra Pradesh and it has a population growth rate of 10% a year. Other than the population Hyderabad has an uncontrolled industrial growth in and around itself. Due to the population and the industries surrounding Hyderabad the demand for water supply is very high. The water that is necessary is provided by the river Musi and the 5 lakes surrounding it these 5 lakes are Hussain sagar Saroornagar lake Osman sagar Himyat sagar Shamirpet Lake These lakes in Hyderabad are manmade which serve the purpose of storage and supply of water of the great city of Hyderabad. Hyderabad gets its rain in the south west monsoon period in the Indian climatic chart. Most of the rain fall occurs in the months of June to September. What these lakes do is they store this rain water so it can be utilized in the time of need. Hyderabad is known as the ââ¬Å"city of pearlsâ⬠. The city is a major hub for information technology industries as well as pharmaceutical industries, biotech industries. Due to the presence of so many people and industries the demand for water supply is more, and this demand for water supply is provided by the lakes surrounding Hyderabad. (Ramachandraiah, C. and Sheela Prasad (2004, 2003)). The main water sources and the water suppliers for the city of Hyderabad comes from the various water projects that are surrounding it the following table will explain this Pressure On Water Use: Hyderabad is a large city with a huge population having many industries and a large agriculture area because of this water coming from a single source is not sufficient; this is where the lakes surrounding Hyderabad help. First we should identify the key water users who we need to supply water. The water that is supplied from these lakes is used for Agriculture Industries Household Recreation Environmental uses Agriculture: agriculture is essential for the production of food and to cultivate we need water. So the water that is stored in these lakes is supplied for agricultural purposes by using pipe lines but mostly in India water needed for agriculture is used from bore wells. In Hyderabad 35% of the water is supplied for agriculture. Industries: industries play a vital role in Hyderabad and Hyderabad is a place where new industries are being built every ware .in order for these industries to run sufficient water should be supplied. These industries are located in Patancheru, Bolaram, BHEL, Hi-tech city; generally 15% of the citys water is supplied to these areas. Household: 40% of the water that is being supplied to Hyderabad is used for household purposes .Since it is a city it contains many people and also because of the industries people will be visiting due to this a large amount of water is needed this water is supplied by the lakes surrounding it. Recreation: 5% of the water that is being supplied to Hyderabad is used for recreation purposes like water parks like Ocean Park; Jalvihar.This water is also used for golf course which is at Bolaram. The water used in swimming pools also comes under recreational purposes where Hyderabad ha s a lot of swimming pools around it. Environmental purposes: in this water usage includes artificial lakes intended to create wildlife habitat, fish ladders, and water releases from reservoirs timed to help fish spawn and the Hussain Sagar Lake was created mainly for this function and it is located in the center of the city. Demand /Supply Issues: For the city of Hyderabad there are many demand and water supply issues which need to be kept in mind considering the population and economic growth if we need to fix this problem we need to identify and develop new supply sources almost continually. Increase in population growth rate, overexploitation of ground water, poor sewage treatment, declining surface water resources and deterioration of ground water quality these are the major water related issues in Hyderabad. The major supply and demand issues and the factors that affect this for Hyderabad are concerned with the following Population growth: Hyderabad has a Population of 5.2 million and having a growth rate of 2.5% ever year is considered to be a large city and the population is very high because of this the supply and the demands needs of the citizens are not met correctly .Due to this large population supply of the required amount of water is very difficult. Increased affluence: This is also an issue due to the increase in population and poverty in India increasing affluence without doubt means more water consumption from needing clean fresh water 24 hours a day, 7 days a week and basic hygiene service. Rapid urbanization: Due to the rapid urbanization of the city of Hyderabad and its constant expansion because of this it requires investment in water infrastructure in order to deliver water to individuals and to process the concentrations of wastewater, because of this rapid urbanization the water supply to all the people is not going well and this has become a major issue. Expansion of business activity: since Hyderabad is a large city and a site for many businesses and industries and also the number of industries and businesses are growing in a constant rate due to this it will attract many people and it will lead to urbanization an increase in population and because of this increase there will be in issue for supply of water for all these people. Climate change: climatic change plays an important role in the supply of water for the city of Hyderabad every year the amount of rainfall is decreasing or due to the climate change the rainfall is not falling in the sufficient time. Because of this there is an issue in the supply of water for the city of Hyderabad. Pollution and water protection: Due to the dumping of pollution into the rivers and lakes that are produced by humans and industries surrounding Hyderabad the water in them cannot be used and the water protection is also not so grate so we cannot use this water, due to this the supply of water is gradually decreases. This is by far one of the major issues concerned with the water bodies surrounding Hyderabad. Pressures On Water Quality: In addition to encroachments, pollution of lake waters by untreated domestic sewage and toxic industrial effluents has been going on over the years in the city of Hyderabad. The lakes that used to provide drinking water do not do so now. First in the city of Hyderabad there were supposed to be six industrial areas but there are now twelve areas and also many of these industries are located near the lakes due to which all the lakes are getting polluted because of the wastes that are coming out from these industries. Because of these effluents that are coming out from the industries the lakes are becoming toxic and because of this toxicity the lakes are becoming devour of any life. Some of the important rivers polluted by the industrial effluents are Bollaram, Isakavagu, Nakkavagu, and Manjeera. A study conducted by HUDA showed that 18 water bodies we most polluted while 67 were less polluted and out of the 36 lakes only 6 lakes were in useable condition. The pollution control board was unsuccessful in implying the Environment Protection Act, 1986, the Water Act, 1974 and the Air Act, 1981.HUDA gave particulars abort 169 lakes covering an area of 90.56sq.km.amongs these 25 are private, 62 are governments and 82 are partly government partly private. According to the law these areas must be kept from any construction to prevent any type of pollutions to the lakes and to allow free flow of water into the lakes. There are about 200 Central and State laws to protect environment in India (Sinha, 2001:47). As per section 24 of the Water (Prevention and Control of Pollution) Act, 1974, poisonous, noxious or polluting matter shall not be discharged, directly or indirectly, into water bodies, sewers or on land. Similarly, under sections 7 of the Environment Protection Act, 1986 ââ¬Ë no person carrying on any industry, operation or process shall discharge or emit or permit to be discharged or emitted any environmental pollutant in excess of such standards as may be prescribed (Divan and Rosencrantz, 2001: 653, 676).The government of Indias (GOI, 1992) policy statement on abatement of pollution declares four guiding principles with the objective of integrating environmental considerations into decision making (Ibid.: 36): (i) prevention of pollution at source, (ii)adoption of the best available technology, (iii) the polluter pays principle, and (iv) public participation in decision making Referencing: Ramachandraiah, C. and Sheela Prasad (2004) ââ¬Å"Impact of Urban Growth on Water Bodies: The Case of Hyderabadâ⬠, Working Paper No. 60, Centre for Economic and Social Studies, Hyderabad. Ramachandraiah, C. (2003): ââ¬Å"Urbanisation and Urban Servicesâ⬠, in Hanumantha Rao, C.H. and S. Mahendra Dev (eds.) Andhra Pradesh Development: Economic Reforms and Challenges Ahead, CESS, Hyderabad. Sinha, S. (2001) ââ¬ËEnvironmental Protection: Role of Constitutional Courts, in Contribution of the Andhra Pradesh High Court in the Development of Constitutional Law, High Court of Andhra Pradesh, Hyderabad. GoI, (1992) Policy Statement for Abatement of Pollution. Delhi: Ministry of Environment and Forests, Government of India. Divan, S. and A. Rosencranz (2001) Environmental Law and Policy in India: Cases, Materials and Statues. New Delhi: Oxford.
Monday, August 5, 2019
High Speed Internet Access Information Technology Essay
High Speed Internet Access Information Technology Essay Computer technologies have evolved new generation in the system of life. Almost in everywhere the computer technologies has been used for several purposes. Even the smallest organizations are depending on the computer technologies to operate most of their activities. One of the most important computer technologies is the computer networking, which provides many advantages. Nowadays, the computer networking becomes very useful to share the information easily. As you know , the computer networking are used in the active organizations, but lately even the small houses have got a home networks. Home network can be two or more computers are connected to each other to share some functions. Having a network are so useful for many reasons such as, hardware sharing. The users on network can use one hardware at the same time instead of using more than one. For example, if we have more than one computer at home we can use one printer base on our home network. Not only does a home net work provi de the ability to share resources found locally , but the fact that the home network can be connected to other networks. Most home networks, big or small, are also now connected to the global network which is the internet. A high-speed Internet connection is suitable in order to connect all computers on the home network to the Internet. There are many different types of internet connection. The three primary ways for home users to obtain a fast connection to the Internet are Digital Subscriber Loop (DSL), cable, and satellite. DSL is provided by telephone companies, cable is provided by cable TV companies, and satellite connections are provided by satellite TV providers. DSL shares the same phone line as the telephone service, but it uses a different part of the phone lines bandwidth. It does not interfere with normal phone service because there is a significant amount of unused capacity in current phone wires. Each has its advantages and disadvantages, including the minimum and maximum speed of Internet access, cost, and availability. I am going to make an active home network in our resident place ,which is located in Kuala Lumpur, Bukit Jalil , Savanna condo block A, 13th floor. This network will be used for many purposes such as using one internet subscription and one printer as well by more than one user. Besides that, I will take the advantages of transferring Data between the network users. As I am going to have a home network for six users or more, I have to pass through some steps. Firstly, I should know which types of internet connection are available and get the information about them. Secondly, according to the information that I will get, I am going to decide and choose one of the internet connections which has suitable costs and speed. Then I will apply to get the chosen connection. After that, I will choose the way to connect the users of the networks which rather will be wireless connecting and cables at the same time, which means I have to provide a wireless router and switch. Finally, as it is ment ioned above, I need to get a printer to be used by the all the network users. If we could make these steps done we will have a useful home network to achieve the particular purposes that I mentioned before, obviously after we implement it correctly. High Speed Internet Access: * Digital Subscriber Line (DSL):- The telephone system in this country has been around for more than a fifty years. And when you think about the actual physical infrastructure that make up the telephone system , you can see why it made sense and still makes sense to take advantage of the long distance of copper wire to connect computers at different sites. The telephone system is a switched network. This means that as a connection is established on the telephone systems network, it can be switched along different paths. For example, when you make a phone call, your voice communication does not necessarily move along the same route, even though you dial the same phone number when you call a particular person. As far as the transfer of data is concerned, the telephone system offers more than one possibility for moving information from source destination. This includes dial- up connection, dedicated lease line, and different switching technologies. One of the newest technologies for data transfer over the telephone system is Digital Subscriber Line. Digital Subscriber Line DSL is one of several popular broadband internet connectivity options. -Types of DSL: DSL stands for Digital Subscriber Line.à Your basic high-speed connection that shares space with your phone line. ADSL stands for Asymmetric Digital Subscriber Line.à Has a slower upstream (upload speed) and a faster downstream (download speed).à Ideal for personal use like e-mail or surfing the Web. HDSL stands for High bit-rate DSL.à Has a modem on either end of one or more twisted pairs of wires that delivers T1 speeds.à This method requires two phone lines. IDSL stands for Integrated DSL.à IDSL combines ISDN transmission coding and ISDN channels on one circuit.à There are no dial up or per-call fees.à This is a better option for subscribers that may live too far for regular DSL. VDSL stands for Very high bit-rate DSL.à It offers the highest speeds in DSL connections right now.à At present, this method is only being used for limited commercial use.à DSL providers hope to make this form of DSL more common in the future. SDSL stands for Single Line DSL.à SDSL is symmetric, which means that information can be carried upstream and downstream at the same rate. How DSL works: DSL works with a twisted pair of copper wires, just like the kind that connects to your telephone from the telephone company. When you make a DSL connection, your normal phone line becomes the medium for all of your voice conversations and your Internet data requests.à Just like in a cable connection, the line is shared by the two connections and the information is kept separate, so that signals do not cross. The equipments that we need to get DSL connection: A modem (also known as a transceiver) on the subscribers side, this hooks up the computer to the phone line and processes all information and data. In more details, computers work with digital information, the digital data that is, the ones (1) and zeros (0) must be converted so that it can be carried by the analog phone line. This conversation from digital information to analog information is called modulation. When analog information is received on the modem connected to the destination computer, the data must be converted from analog back to digital. This process is called demodulation. You can see that the name for these devices, modem, is taken from modulation and demodulation. Access Multiplexer on the service providers side, stands for DSL Access Multiplexer and it takes requests from many customers and sends them into a single connection to the Internet. DSL filter a filter is sometimes used to separate the information coming from voice conversations and from the Internet.à All signals fewer than 4 KHz are voice signals, everything over 4 KHz is Internet data either being uploaded or downloaded.à The filter acts as a barrier so that signals never cross. Advantages and disadvantages of DSL: 1- Advantages of DSL: There are many advantages DSL such as:- DSL offers a fast connection. DSL allows you to use an open Internet connection and use your telephone line for phone calls at the same time. DSL speed is typically a lot faster than a traditional modem and doesnt require new wiring. Actually you can use the phone line that you have already installed in your home to get DSL up and running. You will be able to download and upload files faster. 2- Disadvantages of DSL: surely, there are disadvantages to anything as is the case with DSL:- The closer you are to the central office of the DSL provider the better your connection will work. For example, if your location is far away you may get more problems of connecting using DSL line. Typically connection speeds are faster when receiving information and data than when sending data using a DSL connection. DSL internet providers in KL: There are many available DSL service providers in KL: * TIME Broadband: Broadband Internet is high speed Internet access with speeds greater than 256Kbps. Costs and speeds of TIME Broadband: Features HomeNET 256 HomeNET 384 HomeNET Pro* Download Speed 256kbps 384kbps 448kbps Upload Speed 256kbps 384kbps 448kbps Monthly Charge RM 78 RM 98 RM 138 One-Time Installation RM 120 RM 120 RM 120 (Author/ unknown, Timebroadband.time.net.my, 2009) The coverage of TIME Broadband: Buildings Postcode Casa Vista Condominium 50480 Mont Kiara Astana 50480 Mont Kiara Mozart Tower 50480 Mont Kiara Damai 50480 Mont Kiara Palma 50480 Mont Kiara Pelangi 50480 Mont Kiara Pines 50480 Mont Kiara Sophia 50480 Sri Wangsaria Condominium 50480 Straits Court Condominium 75050 Suasana Sentral Condo 50470 (Author/ unknown, Timebroadband.time.net.my, 2009) * Giga broadband: Its another DSL technology known as Very high bit-rate Digital Subscriber Line (VDSL) provides an incredible amount of bandwidth, with speeds up to about 54 megabits per second (Mbps). VDSL Network Sdn Bhd is ready to bring Giga broadband using VDSL technology to the end users to enjoy true broadband speed running internet applications such as business portal, video on demand, voice over broadband, video game and other contents that require high bandwidth. Costs and speeds of giga broadband: residential à (Author/ unknown, Vdslnetwork.com, 2009) The coverage buildings: AsiaLife Building Avenue K Bangunan MBSA, Shah Alam Casa Vista Condominium Chulan Tower Crowne Plaza Empire Tower Hotel Istana Kenanga International, KL Kompleks Antarabangsa KUB.Com Lee Rubber Mahsa College (Author/ unknown, Vdslnetwork.com, 2009) * TM streamyx: Streamyx is Malaysias premier broadband provider, hooking up Malaysians nationwide with the fast-paced online world. The bandwidth provided by Streamyx gives you an unsurpassed Internet experience. Audio and video stream consistently. And youre easily kept abreast with the complex applications and heavy websites that are now in vogue. With Streamyx broadband well be able to: perpetually online enjoying unlimited usage for a fixed rate, and Downloading data at lightning speeds of up to 4.0Mbps! Costs and speeds: Package Download Speed Upload Speed Monthly Price Streamyx 384kbps 384kbps 128kbps RM20 for 10hrs additional usage: 5 sen/min (without modem) Streamyx 512kbps 512kbps 256kbps RM44 for 60hrs additional usage: 1 sen/min (without modem) RM66 (without modem) RM77 (with modem) Streamyx 1.0Mbps 1.0Mbps 384kbps RM88 (without modem) RM99 (with modem) Streamyx 2.0Mbps 2.0Mbps 384kbps RM188 (with modem) Streamyx 4.0Mbps 4.0Mbps 512kbps RM268 (with modem) (Author/ unknown, streamyx.com.my, 2009) The coverage of TM streamyx: You can check if your area is under the coverage or not by these ways: -By going to this website: (http://www.streamyx.com.my) By SMS Message: STXFIXED LINE NUMBER (e.g.: STX 0355195560) Send it in to 33535 And wait for the reply Comparison between the three mentioned service providers: Referring to our case (home network for five users) we should have an internet connection with accomplishment of speed at least 2 Mbps, so that, we are not going to consider TIME Broadband because it does not accomplish the speed that we need in our home network. The attached table shows the comparison according to our needs of our home network. Service provider Speed Monthly costs Availability TM streamyx 2.0Mbps RM188 (with modem) Available in our building Giga broadband 2.0Mbps RM148 (with modem) Unavailable in our building As you can see in the table there is only choice, which is TM streamyx, because its the only available provider we can get in our building. Beside that, it is considered as the most known DSL provider in Malaysia. *Cable internet:- Cable Internet is one of the most used ways of having an internet connection. Cable broadband Internet allows you to have a connection that delivers considerably faster speeds than other types of internet connection without effecting with your ability to make and receive telephone calls. A lot of people prefer Cable Internet to other internet options, such as DSL, because it works the same wiring already used to provide cable television in their resident places. This typically makes installation easier and faster. According to the information mentioned, we can define cable internet as high speed Internet access through a cable line provides the customer with high speed data without using a telephone line. How cable internet works: Cable Internet works same as cable television works. Cable providers use a transportation of backbone optic wires to transfer television channels. These same lines are used to connect the user to the Internet. This is possible because each wire actually consists of multiple channels. Most of these channels are used for television transmission, but some are booked for data and information transfer. Those channels are used for accessing the Internet and separate ones are used for uploading and downloading. The speed, in part, depends upon the number of channels made available for users. The transmissions go to the cable providers local data center. This center is considered as the main port for all of the television and data transmissions for this particular area. From here, the transmissions will be sent out along the fiber optic lines to the Local Node Box. This box collects transmissions for all of the households in this particular area. Since you only have one wire getting cable into your home, it will need to be supplied so that one part can connect to your cable television receiver while the other goes into your cable modem. You will also need an Ethernet card if your computer does not already have one. When your cable modem receives the Internet transmission, it translates it into Ethernet data which will be converted by the Ethernet card into information your computer can understand. The process is also used when you send data from your computer to the Internet. http://www.internetservicedeals.com/faqs/cable-internet cable_setup2 (Author/ unknown, electricinternet.com, 2009) As a summary we can get cable internet connection if we have these equipments -Equipments that we need in order to have cable internet connection: TV cable (the main source). Supplier (to make the cable wire split into two parts, one connected to TV and another connected to cable modem). Cable modem (translate Internet transmission into Ethernet data). Ethernet card (convert the Ethernet data into understandable information). Advantages and disadvantages of cable internet: 1- Advantages of cable internet: Cable internet service is always working and you can watch your TV channels while you are connecting to the internet. It is much faster than dial-up service. Cable internet service can use the cable outlet you already have at your home or business. A Cable Modem is typically supplied to you by your Cable internet provider. The distance between you and your internet provider will not affect your internet speed. 2- Disadvantages of cable internet: Cable internet service is shared between you and other people on your network segment. Cable internet service is not symmetrical in that the upload (send) internet speed is slower than the download (receive) internet speed. Cable internet service is not available everywhere. -Cable internet Service providers: Cable internet service is not available in Malaysia. * Satellite: Satellite high speed internet service is a technology for getting high speed internet connection by using satellite dish connected to the orbiting system. Satellite internet service is one of always on service, this means we can access to internet without affecting on the telephone lines as well. So shortly we can define Satellite high speed internet service as a high speed internet connection to the global internet network by using satellite dish. -How satellite high speed internet service works : Actually, satellite high internet service is divided into two types:- One way satellite service / which must be provided with standard phone line to make the data traveling via this standard phone line obviously trough the phone modem. It is called one way service referring to that the upload speed is very low and the download speed is higher than upload speed. oneway (Author/ unknown, sinosathk.com, 2009) Two ways satellite service / Two-way satellite Internet service can provide both sending and receiving data from the remote very small aperture terminal (VSAT) site via satellite to a hub teleport, which then sends the data via the terrestrial Internet. The satellite dish at each location must be exactly pointed to avoid interference with other satellites. The attached picture gives more explanations. VSAT Star-shaped Networks Equipments that we need in order to have satellite internet connection: Approximately a two-foot by three-foot dish Two modems (uplink and downlink) Coaxial cables between dish and modem Advantages and disadvantages of satellite internet: Advantages of satellite internet connection : Satellite internet connection is faster than dial-up, it can provide up to 1.5Mbps. Satellite internet does not require a hard wired connection to the provider. Satellite internet is almost available anywhere, even in rural areas. Disadvantages of satellite internet connection: The upload speed is not as good as the download speed. Satellite connection is affected by inclement weather. The signals travel for long distance that causes some problems of delay known as latency, which causes problems when playing games online or when making internet phone calls. -Satellite Service providers in Malaysia: * SMART Company: There two satellite services provided by SMART: service availability available speeds approximate monthly cost Smart Ku band anywhere Up to 1512kbps Starts from 350RM per month Smart C band anywhere Up to 2Mbps Starts from 998RM per month (Author/ unknown, smartmalaysia.com, 2009) * Broadband over Power Line (BPL): Broadband over power line is a new technology that allows the users to access to the global network (internet) by plugging computers into any electrical outlet. This technology is almost similar to the other types of DSL in speed and costs. In short, the BPL is defined as a technology that allows Internet data to be transmitted over utility power lines. How BPL works: diagram (Author/ unknown, howstuffswork.com, 2007) BPL works by modulating high-frequency radio waves with the digital signals from the Internet. These radio waves will be fed into the utility grid at specific points. They travel via the wires and pass through the utility transformers to subscribers homes and businesses. Obviously, it needs some necessary modification to the utility grid to allow transmission of BPL. The purpose of using BPL is that the data can be transferred by bundling radio-frequency waves on the same line with a current electric line, so that, data can be transmitted without the need for a separate data line. Because the current electric power and radio waves are vibrated at different frequencies, the two dont interfere with each other. -Equipments that are needed in order to build up BPL connection: bpl1 (Author/ unknown, electricinternet.com, 2006) As you can see in the picture above, equipments are divided into two sections: -Equipments that the provider should install them (disappear to the user):- 1- router: supports the implementation and switches the customer access gateway. 2- Coaxial cable: connects the coupler and the gateway together. -Equipments that appear to the user:- 1- Electric outlet: the source of the power. 2- BPL Modem: makes the data understandable to the computer. -Advantages and disadvantages of BPL: 1- Advantages of BPL:- BPL connection is not affected by the long distance compared with other types of Broadband, as long as there is a power line, BPL can be installed. BPL is generally not limited by technical constraints. BPL is less costly to be deployed than cable and phone companies, because it does not require upgrading the current power lines. 2- Disadvantages of BPL:- BPL can affect to the other radio waves which have the same frequency rang. BPL unintentionally, send broadband signals as radio signals which make some troubles that affect on the radio signals receivers. BPL providers in Malaysia: *Relam BPL communication: BPL is still not implemented in Malaysia. It is still under testing. Soon this service will be launched. This poster has been scanned to show you the costs of this service after being implemented. user posted image(Author/unknown, www.et.net.my) -Comparison between all types of internet high speed connections: Referring to the information mentioned above, here is a table to summarize and recommend which one is more suitable to this particular home network. This table concentrates on the available types in the place that the particular network is going to be launched in (Savanna condo, block A, 13th floor). Name of the provider type speed Monthly subscription fees TM streamyx DSL 1.0 Mpbs 99 RM Smart Ku band Satellite 1.0 Mpbs 350 RM As it is clearly shown, the obvious suitable connection for this particular home network is TM Streamyx, because it has less costs and it is the most known provider in Malaysia as well. Wi-Fi technology: Computer networking is becoming more improved and much useful. Previously, the computer networking started with a traditional way of connecting the devices together by using wires. This way was just the beginning of this technical generation. Recently a new technology has been introduced which made a huge change in the computer networking. This technology is called wireless Fidelity (Wi-Fi). Clearly, Wi-Fi technology has been used to give the users the freedom of being connected together without using any physical connectors. -Definition of Wi-Fi: (Wi-Fi is a wireless local area network technology that primarily provides short-rang wireless high speed data connection between mobile data devices and nearby Wi-Fi access point). (Author/ unknown, phonescoop.com, 2004) Description of the technologies involved: Wi-Fi is used for wireless local networking technology that uses 802.11standard. It comes as wireless router which is usually connected to DSL modem. This router transmit and receive the data by using radio frequency (RF) technology, this radio frequency goes through electromagnetic spectrum then it will be supplied to antenna which is usually Laptop or any device provided with Wi-Fi antenna. The wireless signal typically has a range of 300 feet. The connection speeds get slower as the distance the computer and the router increase. -Importance of Wi-Fi technology: Wi-Fi technology gives us much freedom of getting connected without any physical preclusion. It makes the networking much simple and easy, reliable. For example, the user of Wi-Fi networks can connect to the internet anywhere under the Wi-Fi coverage. Besides that, it makes transmitting the data faster compared to other types of wireless technologies. Wi-Fi implementation: There are many standards Wi-Fi technology but two of them are the most common nowadays, the first one is called 802.11b which provides a data transmission speed up to 11mbps, the other one is called 802.11g which provides a data transmission speed up to 54mbps. As it is mentioned the G one is faster, it is more popular and also support the B one devices so it will always be chosen for implementing Wi-Fi networks. Hardware that are needed in order to implement a Wi-Fi network: 1-ADSL modem: usually given by the internet service provider. 2-Wireless router (access point): usually comes with four RJ45 network ports.http://www.datapoint.com.mk/catalog/images/linksys%20wireless%20access%20point.jpg 3-Wireless adapter: in case if there is a computer desktop PC, this computer must have a wireless card to receive the Wi-Fi signal, there different type of Wireless adapter:- PCI card: means Peripheral Connect Interface, this is the name given to a type of port inside the pc, which enables the user to add thing such as network cards, modems, sounds cards. dlink_pci_dwl528 USB Wireless Dongle: any PC provided with USB ports can accept this type of wireless adapter. http://img.alibaba.com/photo/100641524/Wireless_USB_802_11g_Adapter_With_5_Dbi_Antenna.jpg Software: There is no specific software to implement Wi-Fi network. Wi-Fi router can be installed and configured by using any internet browser such as internet explorer. In the other hand, there is some software to manage Wi-Fi networks. It makes managing the network easy and controllable. Costs of implementing Wi-Fi technology: According to the hardware needed for implementing a Wi-Fi home network, the costs will be as it is shown in the attached table. hardware Price Linksys wireless router WRT54G2 168RM DSL modem Provided by Strymex Wireless adapter Linksys USB dongle 140RM So the total costs of implementing Wi-Fi technology is 308RM. *operational requirements of Wi-Fi technology: -Safety: Wi-Fi technology could be harmful to the human-being. The high frequency of radio signals could cause some kind of cancers. Referring to the studies that have been done, no one could prove the negative effects of the radio waves; no one could prove that the Wi-Fi technology is harmless as well. However, to be more secure, we should not allow the children to use laptop for long time. Also we should not use laptops on our laps especially when we use the laptops for long period. Security * Security mechanisms: There are several mechanisms to secure any Wi-Fi network each mechanism has its own concept:- 1-SSID: SSID is the short form of Service Set ID. In other word, it can be considered as the name of the network. The purpose of SSID is connecting the clients to the access point. SSID will be broadcasting to be seen by the clients. Each access point has a name. In case if there is more than one access point with the same SSID, it will be shown as one access point which has the strongest signal. In the other side, SSID can be hidden for more security by changing the settings of the broadcast to be unviewed so that the client must know the SSID. Unfortunately, hiding the SSAD does not mean that the SSID is really invisible; there are some programs to find out the hidden SSID such as NetStumbler. 2-WEP: is the short form of Wireless Equivalency Protocol. When the user set up Wi-Fi network, there will be two options of encryption, one is WEP and the other is WAP. WEP provides lower level of protection. It uses 64bit and 128bit encryption by using RC4 logarithm. WEP uses a secret encryption key to encode data packets before a network client or an access point transmits them, and it uses the same key to decode the packets after they have been received, it also prevents unauthorized access to the network, it performs an integrity check on each packet, and it protects the data from eavesdroppers. Generally, WEP encryption can be easily broken compared to WAP encryption. 3-WPA/WPA2: is the short form of Wireless Protected Area. It was created as a partial solution to the weakness of WEP encryption. WPA is much better than WEP but that does not mean it is completely protected.WPA can be cracked but not as easy as WEP. WPA is more secure because it uses a method called Temporal Key Integrity Protocol (TKIP) to automatically change the encryption key after a specified period of time or after the system exchanges a specific number of packets. Obviously, there is a question has been on your mind, how does WPA actually can secure the network? Well, WAP works in two different ways. First, in large networks, (WPA uses an authentication server to verify the identity of each network user. The server uses Remote Authentication Dial-in User Service (RADIUS) and the Extensible Authentication Protocol (EAP) to exchange encryption keys with the computers and other devices that are connected to the wireless network.) Second, ((in home networks and smaller business networks that do not have a server, A method called pre-shared key (PSK) mode uses a passphrase stored in the access point in place of the authentication server. To connect to the network, users must enter the same passphrase on their computers or other network devices (or set their devices to automatically enter the passphrase). When you set up WPA encryption, you must specify whether the network uses a server or PSK mode.)) (Author/ John Ross, The book of wireless, 2004) WPA2 is the recent version of WAP. They almost have the same concepts. There are some differences between WPA and WPA2. WPA Personal- Authentication method is PSK, Encryption Method is TKIP
Sunday, August 4, 2019
Benjamin Harrison :: essays research papers
President Harrison's single term fell between the two terms of Grover Cleveland, a Democrat. Cleveland was popular with the people but unpopular with political leaders. Harrison was popular with neither. There was indeed something of a mystery in his being elected at all. He was serious and dignified, not a hand-shaking politician and not a leader of men. On July 1, 1862, Lincoln called for more troops. Harrison went to the governor, who asked him to recruit a regiment. On his way back to his office, he bought a military cap and hired a fifer and a drummer. Then he put a flag out of his office window and began recruiting. When the regiment was complete, the governor commissioned him a colonel, and Harrison set off with his troops. By day he drilled his men; at night he studied tactics. Always he looked after his soldiers' needs. They called him Little Ben. General Harrison went back to his work at the Supreme Court and his law practice. He also took over again his large Bible class in the Presbyterian church, where his wife taught Sunday school. In 1876 Harrison ran for governor of Indiana. The Democrats called him "cold as an iceberg" and nicknamed him Kid-Glove Harrison. The Democratic candidate, nicknamed Blue Jeans, won the election. Four years later the Indiana legislature elected Harrison to the United States Senate. He served from 1881 to 1887 and won the good will of veterans by supporting the many private pension bills that came to him. Great was the confusion in the Republican nominating convention of 1888. Senator James G. Blaine, the leader of the party, had been defeated by Cleveland in 1884 and refused to run against him again. The field was therefore open. Harrison was finally nominated with Blaine's support. Levi P. Morton, a New York banker, was named for vice-president. Harrison kept aloof from Congress and left lawmaking to its leaders. First on his list was the Dependent Pension Act. This provided money for Civil War veterans who had a disability, no matter where or when they got it. Extravagant appropriations were made also for the Navy and for rivers and harbors. The 51st Congress was the first to spend a billion dollars in peacetime.
Saturday, August 3, 2019
The Lost Honour of Katharina Blum Essay -- essays research papers
The Lost Honour of Katharina Blum Knowing about the writer of a literary text can shape significantly the way that it is read. Consider the effect of the writerââ¬â¢s context on your understanding of The Lost Honour of Katharina Blum. ââ¬Å"As a writer of fiction Bà ¶ll was interpreting history, creating patterns of meaning, ordering his material to enable his reader to make sense of it.â⬠The experiences of Bà ¶ll and his values that arose from these events have been influential on the content and themes of Bà ¶llââ¬â¢s novel, The Lost Honour of Katharina Blum. Bà ¶ll experienced both the first and second world wars and the effects that these wars had on German society. Events such as the economic collapse in Germany post WWII, the construction of the Berlin Wall, the rise of student based urban terrorism in West Germany in the 1970ââ¬â¢s and the increasing state controls to contain such alleged threats can be seen to influence the issues explored in The Lost Honour of Katharina Blum. The novel is a comment on the press and the law, the labyrinth of social truth, the collision of fact and fiction and the power of language. Bà ¶ll himself experienced the press first hand and this along with the ex periences of Professor Bruckner, form the basis of his criticism directed at the powerful and hegemonic structures in society, in particular in relation to the police and the press and their corrupt relationship in the novella. Many of Heinrich Bà ¶ll s views and attitudes, resulting form his context, are clearly visible in the novella through the portrayal of certain characters in positive or negative lights. The historical, social, economic and political context of Bà ¶ll and West Germany at this time (1900ââ¬â¢s) had a considerable effect on the issues Bà ¶ll delves into in The Lost Honour of Katharina Blum and greatly affected my understanding of the novel. Germany has a deeply rooted history with fascism in the form of Nazism in WWII (1939-1945). Bà ¶ll was a teenager at the time of Hitlerââ¬â¢s rise to power and he despised Hitler and everything that he stood for. ââ¬Å"I hate the war and all those who love itâ⬠. Bà ¶ll actively refused to join Hitlerââ¬â¢s Youth as a boy, yet as a young man he was forced to join Hitlerââ¬â¢s army. After the war, until the German Republic was formed, Bà ¶ll lived under the Allied Occupation. These events led Bà ¶ll to view politics with doubt and skepticism and he became vehement abo... ... context that shaped Heinrich Bà ¶ll, it becomes apparent to the reader that these conditions have greatly shaped the themes and ideas discussed in Bà ¶llââ¬â¢s, The Lost Honour of Katharina Blum. Main issues such as the corruption and collusion of powerful institutions in society, especially the police, press and industrialists have come through, with emphasis being placed on the misogynistic and patriarchal society and the effects this has on the treatment of woman, shown by Katharina. Bà ¶ll brings his awareness of they way in which power and status are connected to wealth into the text and greatly condemns the abuse of power by the dominant groups in society, ââ¬Å"Bà ¶ll had little faith in any moral renewal coming from political or ecclesiastical hierarchies.â⬠. Bà ¶ll believed that ââ¬Å"the function of literature is to challenge the arrogant claims to totality made by all ideological systemsâ⬠. By incorporating his own context into his work, The Lost Honour of Katharina Blum, Bà ¶ll leads the reader to a greater understanding of this time period in West Germany, at the same time undermining the dominant systems and causing the reader to question and carefully examine power structures in society.
Friday, August 2, 2019
Drug Abuse Essays -- Drugs Narcotics Research Papers
Drug Abuse à à à à à Drug Abuse is generally defined as the use of a drug with such frequency that the user has physical or mental harm or it impairs social abilities. The substances that are discussed in this report are called psychoactive drugs; those drugs that influence or alter the workings of the mind, affect moods, emotions, feelings, and thinking processes. Drug Dependence/Addiction à à à à à There are three basic characteristics that indicate that the user is dependent on a drug. First, the user continues to use the drug for an extended period of time. Second, the user finds it difficult to stop using the drug. They may drop out of school, steal, go to jail, lose their jobs, or leave their families in order to keep using. Finally, the user has withdrawal symptoms when drug use is stopped. They may undergo physical pain or mental distress. The drug mimics a natural process in the brain called neurotransmission. This is when a brain cell releases a signal to another brain cell. The signal then returns to the first brain cell. The signal is called a neurotransmitter. One major neurotransmitter is called dopamine, which is involved in feelings of pleasure. When the drug is released into the brain, it blocks the dopamine from returning to the first brain cell. Repeated use changes the brain cells so that normal messages can't be sent between brain cells. The drug must always be present in order for neurotransmissions to take place. The user is only able to feel pleasure from the cocaine rather than the things he/she used to find pleasurable. This is called drug addiction or dependence. Drug Classification Drugs are generally categorized into two groups, stimulants and depressants. Stimulants are drugs that speed up signals through the nervous system. They produce alertness, arousal and excitability. They also inhibit fatigue and sleep. They include the amphetamines, such as cocaine, caffeine, and nicotine. Depressants slow down the signals through the nervous system. They produce relaxation, lowering of anxiety, drowsiness, and sleep. They include sedatives (such as barbiturates, alcohol, and tranquilizers) and narcotics (heroin, morphine, opium, codeine), which dull the mind's perception of pain. à à à à à Some drugs are not included in the stimulant/depressant categories. An example is the hallucinogens, such as PCP and LS... ...nclude nausea, diarrhea, and pain, but they vary between drugs. Cocaine users report depression when denied the drug. Since heroin is a very addictive drug, it has many withdrawal symptoms. For example, insomnia, muscle cramps, nausea, sweating, chills, panic, tremors, loss of appetite, yawning, runny nose, and watery eyes. Drug Treatment à à à à à A drug addict generally goes through denial before he/she accepts his/her drug addiction. When they are confronted by a family member or friend, they refuse to accept that they are addicted. This is sometimes called a mental block. The user isn't ready or able to deal with thier addiction. The time period of denial varies from person to person. à à à à à When the person has come to accepting their problem, they may go to therapy for treatment. Group therapy has had excellent results. They learn to come to terms with their problem with the support of other people who are going through the same thing that they are. They also learn tools that they can use to help them through the recovery period, such as prayer, excercise, and meditation. Drug abuse is a serious problem, but through treatment and therapy, it can be overcome.
Thursday, August 1, 2019
Communication in a Care Setting Essay
There are many different ways to communicate in the care setting and it is important that you use the right type of communication to match what the circumstances are. I will be using this essay to highlight the types of communication and when they should be used, for example, one to one communication, formal and informal, between colleagues, between professionals and people using services, multi-agency and multi-professional working. One to communication can be difficult for both people involved, especially if you donââ¬â¢t know each other well, or if one person is in a higher position than you, as this can cause a power balance. You need to be assertive, but not in a way that can put the other person down. The first thing to do is to create a positive impression. A good way of doing this is by making a friendly gesture, like a hand shake and smiling, as this breaks the ice and then both parties should hopefully feel more relaxed, and able to carry out a positive and friendly conversation, whether it be a formal work conversation, or an informal chat with a friend, or a colleague. The way you communicate with your work colleagues is extremely important, as you could be working with the same people for a long time and need to keep a positive atmosphere in the workplace, to help both the workers and the service users, as they the service users can pick up bad feelings and make them feel unsettled. There are many different forms of communication. Some are used in both formal and informal ways, such as text messaging. They are used informally between friends, but recently they are now used by health care settings, for example opticians, to send you a reminder message the day before an appointment. This form of communication should never be used in a setting where confidential information is used, as text messaging is not a totally safe form of communication. The same goes with emailing. This may be a fast and reliable way to send and receive important information, but there is always a chance of having your files hacked. Passwords must be used to help keep confidentiality. Written communication should be used in formal situations, where important information is needed to be recorded. This needs to be kept somewhere safe and secure. Oral communication is good for formal and informal settings, but you need to be careful where about the conversation takes place, as it can be easy to break confidentiality if the conversation is overheard. The same thing applies with sign language. Ifà this is used in a public place, someone around you may know sign language, so this can be a confidentiality issue. Music and drama can be used in different social care settings. Drama and Music therapists are used to help people, such as children who have been abused and find it easier to communicate what happened to them through role play, mime, or movement. These types of therapists can be used in conjunction with multi-agency working, for example, the police. If someone is on trial for abusing a child, the therapists use their skills to help the child to be able to speak about what happened, so it can be used in evidence in a court of law. Interpersonal interactions take place in many different ways. This can include speech, which like I included earlier on can be used in formal and informal contexts. The circumstances can be very different though depending on whether or not you are communicating in your first language, or if you or the person you are communicating with speaks with a different accent or dialect, or uses slang that you find difficult to understand. Also in each care setting jargon may be used, which is basically a way in which professional talk to each other that they understand, but others outside of that setting may not. An example of this is doctors using the term ââ¬Å"SATSâ⬠, which is the blood saturation level, or BP, which is blood pressure. Along with verbal communication, a large majority of the way in which we communicate is actually non-verbal, with 55% of how we communicate actually being done by body language. In some formal or informal situations, the use of reflective listening is very important. A formal example would be a psychiatrist listening to a patient explaining what has been going on with them, or informally a friend listening to another friendââ¬â¢s problems. Sometimes I feel that listening can be the best form of communication that someone can use, as formally or informally, it makes the other person they are listening to feel like they care and can build trust between them. For those who are deaf the use of non-verbal communication is their main method of communicating with others. As well as the use of British sign language, known as Makaton, they communicate with facial expression, finger spelling, or even the use of signs and symbols. The use of touch can be used, but in formal situations there is the matter of professional boundaries. When communicating with someone who is deaf, or blind, it is important that theà right aids to communication are readily available, to cater to their specific needs. For example in a hospital, with a patient who is deaf, an interpreter should be used, and the use of braille for a blind patient. The uses of these aids are to break any barriers to communication.
Discuss ââ¬ËThe Chinese Roomââ¬â¢ Argument Essay
In 1980, John Searle began a widespread dispute with his paper, ââ¬ËMinds, Brains, and Programmesââ¬â¢ (Searle, 1980). The paper referred to a thought experiment which argued against the possibility that computers can ever have artificial intelligence (AI); in essence a condemnation that machines will ever be able to think. Searleââ¬â¢s argument was based on two key claims. That; ââ¬Å"brains cause minds and syntax doesnââ¬â¢t suffice for semanticsâ⬠(Searle, 1980, p.417). Syntax in this instance refers to the computer language used to create a programme; a combination of illegible code (to the untrained eye) which provides the basis and commands for the action of a programme running on a computer. Semantics refers to the study of meaning or the understanding behind the use of language. Searleââ¬â¢s claim was that it is the existence of a brain which gives us our minds and the intelligence which we have, and that no combination of programming language is sufficient enough to contribute meaning to the machine and therein for the machine to understand. His claim was that the apparent understanding of a computer is merely more than a set of programmed codes, allowing the machine to extort answers based on available information. He did not deny that computers could be programmed to perform to act as if they understand and have meaning. In fact he quoted; ââ¬Å"the computer is not merely a tool in the study of the mind, rather the appropriately programmed computer really is a mind in the sense that computers given the right programs can be literally said to understand and have other cognitive statesâ⬠(Searle, 1980, p. 417). Searleââ¬â¢s argument was that we may be able to create machines with ââ¬Ëweak AIââ¬â¢ ââ¬â that is, we can programme a machine to behave as if it were thinking, to simulate thought and produce a perceptible understanding, but the claim of ââ¬Ëstrong AIââ¬â¢ (that machines are able to run with syntax and have cognitive states as humans and understand and produce answers based on this cognitive understanding, that it really has (or is) a mind (Chalmers, 1992)) is just not possible. A machine is unable to generate fundamental human mindsets such as intentionality, subjectivity, and comprehension (Ibid, 1992). Searleââ¬â¢s main argument for this notion came from his ââ¬ËChinese room experimentââ¬â¢, for which there has been much deliberation and denunciation from fellow researchers, philosophers and psychologists. This paper aims to analyse the arguments, assess counter augments and propose that John Searle was accurate in his philosophy; that machines will n ever think as humans and that the issue relates more to the simple fact that a computer is neither human nor biological in nature, nor can it ever be. In 1950, Alan Turing proposed a method of examining the intelligibility of a machine to become known as ââ¬ËThe Turing Testââ¬â¢ (Turing, 1950). It describes an examination of the veracity to which a machine can be deemed intelligent, should it so pass . Searle (1980) argued that the test is fallible, in that a machine without intelligence is able to pass such a test. ââ¬ËThe Chinese Roomââ¬â¢ is Searleââ¬â¢s example of such machine. ââ¬ËThe Chinese roomââ¬â¢ experiment is what is termed by physicists a ââ¬Ëthought experimentââ¬â¢ (Reynolds and Kates, 1995); such that it is a hypothetical experiment which is not physically performed, often without any intention of the experiment ever being executed. It was proposed by Searle as a way of illustrating his understanding that a machine will never logically be able to possess a mind. Searle (1980) suggests that we envisage ourselves as a monolingual (speaking only one language) English speaker, locked inside a room with a large group of Chinese writing in addition to a second group of Chinese script. We are also presented with a set of rules in English which allow us to connect the initial set of writings, with the second set of script. The set of rules allows you to identify the first and second set of symbols (syntax) purely by their presenting form. Furthermore, we are presented with a third set of Chinese symbols and additional English instructions whi ch makes it feasible for you to associate particular items from the third batch with the preceding two. This commands you consequently to ââ¬Ëgive backââ¬â¢ particular Chinese symbols with particular shapes in response. Searle encourages us to accept that the initial set of writing is a ââ¬Ëscriptââ¬â¢ (a natural language processing computational data set); the second set a ââ¬Ëstoryââ¬â¢ and the third group ââ¬Ëquestionsââ¬â¢. The symbols which are returned are the ââ¬Ëanswersââ¬â¢ and the English instructions are the ââ¬Ëcomputer programmeââ¬â¢. However, should you be the one inside ââ¬Ëthe Chinese roomââ¬â¢ you would not be aware of this. However, Searle suggests that your responses to the questions become so good, that you are impossible to differentiate from a native Chinese speaker; yet you are merely behaving as a computer. Searle argues that whilst in the room and delivering correct answers, he still does not know anything. He cannot speak Chinese yet is able to produce the correct answers without an understanding of the Chinese language. Searleââ¬â¢s thought experiment demonstrated that of ââ¬Ëweak AIââ¬â¢; that we can indeed programme a machine to behave as if it were thinking and such to simulate thought and hence produce a perceptible understanding, when in fact the machine understands nothing; it is simply following a linear instructional set, for which the answers are already programmed. The machine is not producing intuitive thought; it is providing a programmed answer. Searle was presented with many critical replies to ââ¬Ëthe Chinese roomââ¬â¢ experiment, for which he offered a rejoinder; a retort to the replies by looking at the room in a different way to account for such counterarguments presented by researchers in the field of AI. Harnard (1993) supports ââ¬ËThe Systems Replyââ¬â¢ in refute of the work of Searle. This argues that we are encouraged to focus on the wrong agent; the individual in the room. This implies that the man in the room does not understand Chinese as a single entity, but the system in which he operates (the room), does. However, an evident opposition to such claim is that the system (the room) again has no real way of connecting meaning to the Chinese symbols any more than the individual man did in the first instance. Even if the individual were to internalize (memorise) the entire instructional components, and be removed from the system (room), how would the system compute the answers, if all the computational ability is within the man. Furthermore, the ââ¬Ëroomââ¬â¢ cannot understand Chinese. ââ¬ËThe Robot Replyââ¬â¢ is due to refutation by Harnard (1989) who argued that meaning is unable to be attached to the ciphers of Chinese writing due to the lack of ââ¬Ësensory-motoricââ¬â¢ connection. That is, the symbols are in no way attached to a physical meaning, that which can be ââ¬Ëseenââ¬â¢ and comprehended. As children, we learn to associate meaning of words by attaching them to physical ââ¬Ëthingsââ¬â¢. Harnard argues, that ââ¬Ëthe Chinese roomââ¬â¢ lacks this ability to associate meaning to the words, and thus is unable to produce understanding. Yet, Searleââ¬â¢s defence is that if we were to further imagine a computer inside a robot, producing a representation of walking and perceiving, then according to Harnard, the robot would have understanding of other mental states. However, when Searle places the room (with the man inside) inside the robot and allows the symbols to come from a television attached to the robot, he insists that he still does not have understanding; that his computational production is still merely a display of ââ¬Ësymbol representationââ¬â¢ (Searle, 1980, p.420). Searle also argues that part of ââ¬ËThe Robot Replyââ¬â¢ is in itself, disputing the fact that human cognition is merely symbol manipulation and as such refutes the opinion of ââ¬Ëstrong AIââ¬â¢, as it is in need of ââ¬Ëcausal relations to the outside worldââ¬â¢ (Ibid, p.420). Again, the system simply follows a computational set of rules installed by the programmer and produces linear answers, based upon such rules. There is no spontaneous thought or understanding of the Chinese symbols, it merely matches with that already programmed in the system. ââ¬ËThe Robot Replyââ¬â¢ is therefore suggestive that programmed structure is enough to be acc ountable for mental processes; for cognition. ââ¬Ë[this suggests] that some computational structure is sufficient for mentality, and both are therefore futileââ¬â¢ (Chalmers, 1992, p.3). Further to ââ¬Ëthe Robot Replyââ¬â¢, academics from Berkley (Searle, 1980) proposed ââ¬ËThe Brain Simulator Replyââ¬â¢, in which the notion of exactly what the man represents is questioned. It is hereby proposed that the computer (man in the room) signifies neurons firing at the synapse of a Chinese narrator. It is argued here that we would have to accept that the machine understood the stories. If we did not, we would have to assume that native Chinese speakers also did not understand the stories since at a neuronal level there would be no difference. The opposition clearly defines understanding by the correct firing of neurons, which may well produce the correct responses from the ââ¬Ëmachineââ¬â¢ and a perceived understanding, that is assumed, but the argument remains; does the machine (man) actually understand that which he is producing (answering), or is it again, merely a computational puzzle, solved through logical programming? Searle argues yes. He asks us to imagine a man in the room using water pipes and valves to represent the biological process of neuronal firing at the synapse. The input (English instructions) now informs the man, which valves to turn on and off and thus produce an answer (a set of flowing pipes at the end of the system). Again, Searle argues that neither the man, nor the pipes actually understand Chinese. Yes, they have an answer and yes, the answer is undoubtedly correct, but the elements which produced the answer (the man and the pipes) still do not understand what the answer is; they do not have semantic representation for the output. Here, the representation of the neurons is simply that; a representation. A representation which is unable to account for the higher functioning processes of the brain and the semanticist understanding therein. Further argument suggests a combination of the aforementioned elements known as ââ¬ËThe Combination Replyââ¬â¢ should allow for ââ¬Ëintentionalityâ⬠⢠to the system, as proposed by academics at Berkley and Standford (Simon and Eisenstadt, 2002). The idea is such that combining the intelligence of all the replies aforementioned into one system, the system should be able to produce semantic inference from the linear answer produced by the syntax. Again, Searle (1980) is unable to justify such claims, as the sum of all parts does not account for understanding. Not one of the replies was able to validate genuine understanding from the system and as such, the combination of the three counterarguments, will still remain as ambiguous as first presented. Searle quotes; ââ¬Å"if the robot looks and behaves sufficiently like us then we would suppose, until proven otherwise, that it must have mental states like ours that cause and are expressed by its behaviorâ⬠¦ [i]f we knew independently how to account for its behavior without such assumptionsâ⬠¦we would not attribute intentionality to it, especially if we knew it had a formal programâ⬠(1980, p. 421). Searleââ¬â¢s argument is simple. If we did not know that a comput er produces answers from specifically programmed syntax, then it is plausible to accept that it may have mental states such as ours. The issue however is straightforwardly so, that we do know that the system is a computational set and as such is not a thinking machine any more so than any other computational structure. ââ¬ËThe Chinese Roomââ¬â¢ thought experiment is undoubtedly notorious and controversial in essence. The thought experiment has been refuted and discredited repeatedly, yet perceivably defended by Searle. His own defensive stance has appeared to cause infuriation amongst ââ¬Ëstrong AIââ¬â¢ theorists, resulting in questionable counter attacks, resulting in more of what appears a ââ¬Å"religious diatribe against AI, masquerading as a serious scientific argumentâ⬠(Hofstadter 1980, p. 433) than a significant opposition. Searle (1980) argues that accurate programming in no instance can ever produce ââ¬Ëthoughtââ¬â¢ in the essence of what we understand thought to be; not only the amalgamation of significant numbers of neurons firing, but the underlying predominance which make us what we are, that predominance being consciousness. From a functionalist perspective, with the mind being entwined within the brain and our bodies entangled further, creating a machine which ââ¬Ëthinksââ¬â¢ as a human is nigh impossible. To do so, would be to create an exact match of what we are, how we are constructed and the properties of substance of which we stand. If successful, we have not created a thinking ââ¬Ëmachineââ¬â¢ but a thinking ââ¬Ëhumanââ¬â¢; a human which alas, is not a machine. Searle (1982) argues that it is an undeniable fact that the earth is comprised of particular biological systems, particularly brains which are able to create intellectual phenomena which are encompassed with meaning. Suggesting that a machine is capable of intelligence would therein suggest that a machine would need the computational power equivalent to that of the human mind. Searle (Ibid, 1982, p. 467) states that he has offered an argument which displays that no recognised machine is able ââ¬Ëby itselfââ¬â¢ to ever be capable of generating such semantic powers. It is therefore assumed, that no matter how far science is able to recreate machines with behavioural characteristics of a ââ¬Ëthinkingââ¬â¢ human, it will never be more than a programmed mass of syntax, computed and presented as thought, yet never actually existing as actual thought. References: Chalmers, D. 1992, ââ¬ËSubsymbolic Computation and the Chinese Roomââ¬â¢, in J. Dinsmore (ed.), The Symbolic and Connectionist Paradigms: Closing the Gap, Hillsdale, NJ: Lawrence Erlbaum. Harnad, S. 1989. Minds, machines and Searle. Journal of Experimental and Theoretical Artificial Intelligence, 1, pp.5-25. Harnad, S. 1993. Grounding symbols in the analog [sic] world with neural nets. Think 2(1): 12-78 (Special issue on ââ¬Å"Connectionism versus Symbolism,â⬠D.M.W. Powers & P.A. Flach, eds.). Simon, H.A., & Eisenstadt, S.A., 2002. A Chinese Room that Understands Views into the Chinese room. In: J. Preston * M. Bishop (eds). New essays on Searle and artificial intelligence Oxford: Clarendon, pp. 95-108. Hofstadter, D. 1980. Reductionism and religion. Behavioral and Brain Sciences 3(3),pp.433ââ¬â34. Reynolds, G. H., & Kates, D.B. 1995. The second amendment and statesââ¬â¢ rights: a thought experiment. William and Mary Law Review, 36, pp.1737-73. Searle, J. 1980. ââ¬Å"Minds, Brains, and Programs.â⬠Behavioral and Brain Sciences 3, pp.417-424. Searle, J. 1982. ââ¬ËThe Myth of the Computer: An Exchangeââ¬â¢, in New York Review of Books 4, pp.459-67.
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