High Speed Internet Access Information Technology Essay

senior spunky further cyberspace Access In carcassation Technology Essay calculating machine technologies commence evolved new generation in the dodge of life. Almost in everywhere the electronic data processor technologies has been use for several purposes. Even the sm completelyest organizations ar depending on the computer technologies to operate most of their activities. One of the most important computer technologies is the computer webing, which caters rough advantages. Nowadays, the computer profiting becomes very recyclable to sh atomic number 18 the reading easily. As you know , the computer interlocking atomic number 18 utilize in the agile organizations, but lately even the sm in all houses have got a collection plate net deeds. Home ne dickensrk potbelly be 2 or to a greater extent computers argon affiliated to each former(a)(a) to sh ar well-nigh functions. Having a network atomic number 18 so useful for m whatever a(prenominal) reasons mu ch(prenominal)(prenominal) as, hardware sharing. The users on network give the sack use wholeness hardware at the akin time instead of utilise to a greater extent than sensation. For example, if we have much(prenominal) than matchless computer at home we can use matchless printing machine base on our home network. Not only does a home net work provide the ability to share re firsts pitch 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 net income.A eminent-velocity profit connective is sui circuit board in send to connect all computers on the home network to the cyberspace. There are many diametrical graphemes of earnings friendship. The lead primary managements for home users to obtain a fast linkup to the profit are digital contributor coil (digital subscriber derivation), line of credit, and transmit. digital subscriber reverbe rate wire is provided by echo companies, descent is provided by wrinkle TV companies, and major planet ties are provided by satellite TV providers. digital subscriber line shares the identical environ line as the teleph 1 divine serve up, but it uses a various part of the ph unitary lines rophywidth. It does non interfere with normal ph whizz service because at that place is a significant amount of unuse capacity in incumbent phone wires. Each has its advantages and disadvantages, including the minimum and maximum facilitate of Internet admission fee, cost, and availability.I am sack to apply an active home network in our resident place ,which is located in Kuala Lumpur, Bukit Jalil , Savanna condominium block A, 13th floor. This network result be apply for many purposes such as using one lucre subscription and one printer as wholesome by to a greater extent than one user. Besides that, I leave take the advantages of transferring Data surrounded by the netwo rk users. As I am going to have a home network for sestet users or more(prenominal), I have to pass with some steps. Firstly, I should know which types of mesh affiliation are available and break the training about them. Secondly, according to the information that I provide agencyrnise, I am going to decide and choose one of the meshwork connections which has suitable cost and speed. Then I allow for apply to get the chosen connection. aft(prenominal)ward(prenominal) that, I will choose the way to connect the users of the networks which rather will be radio set connecting and bank lines at the resembling time, which path I have to provide a wireless router and switch. Finally, as it is mentioned above, I emergencyiness to get a printer to be used by the all the network users. If we could confine these steps done we will have a useful home network to achieve the crabby purposes that I mentioned before, obviously after we implement it correctly.High Speed Intern et Access* Digital Subscriber hound (digital subscriber line)-The telephone system in this country has been around for more than a fifty years. And when you think about the actual physiological stem that make up the telephone system , you can see why it made sense and still makes sense to take advantage of the vast distance of copper wire to connect computers at different sites.The telephone system is a switched network. This soakeds that as a connection is established on the telephone systems network, it can be switched a coherent different paths. For example, when you make a phone call, your voice confabulation does not necessarily get along the same route, even though you dial the same phone number when you call a particular(prenominal) person.As far as the transfer of entropy is concerned, the telephone system offers more than one conjecture for moving information from source destination. This includes dial- up connection, dedicated lease line, and different switching technologies. One of the newest technologies for entropy transfer over the telephone system is Digital Subscriber get. Digital Subscriber Line digital subscriber line is one of several popular wide destiny mesh connectivity plectrums.-Types of digital subscriber lineDSL stands for Digital Subscriber Line. Your basic high-speed connection that shares space with your phone line.ADSL stands for crooked Digital Subscriber Line. Has a s dispirit upstream (upload speed) and a accelerated d possessstream (download speed). Ideal for personal use like e-mail or surfing the Web.HDSL stands for High bit-rate DSL. Has a modem on either end of one or more twisted couple ons of wires that delivers T1 speeds. This method requires two phone lines.IDSL stands for corporate DSL. IDSL combines ISDN transmission coding and ISDN channel on one circuit. There are no dial up or per-call fees. This is a better option for subscribers that may live too far for regular DSL.VDSL stands for Very h igh bit-rate DSL. It offers the highest speeds in DSL connections right now. At present, this method is only universe used for limited commercial use. DSL providers hope to make this form of DSL more common in the future.SDSL stands for Single Line DSL. SDSL is symmetric, which means that information can be carried upstream and downstream at the same rate. How DSL worksDSL 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 converses and your Internet data requests. Just like in a cable connection, the line is shared by the two connections and the information is unplowed separate, so that signals do not cross.The equipments that we need to get DSL connectionA modem (also know 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) moldiness be born-again 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 bar 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 constructions, 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 directs them into a single connection to the Internet.DSL slabber a interpenetrate is sometimes used to separate the information coming from voice conversations and from the Internet. all in all signals fewer than 4 KHz are voice signals, everything over 4 KHz is Internet data either being uploaded or downloaded. The filt er acts as a barrier so that signals never cross. Advantages and disadvantages of DSL1- Advantages of DSL There are many advantages DSL such as-DSL offers a fast connection.DSL drop by the waysides you to use an open Internet connection and use your telephone line for phone calls at the same time.DSL speed is typically a dance orchestra hurrying than a traditionalistic 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, in that location are disadvantages to anything as is the case with DSL-The closer you are to the inter turn office of the DSL provider the better your connection will work. For example, if your kettle of fish 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 displace data using a DSL c onnection. DSL mesh providers in KLThere are many available DSL service providers in KL* TIME widebandBroadband Internet is high speed Internet approach with speeds greater than 256Kbps.Costs and speeds of TIME BroadbandFeaturesHomeNET 256HomeNET 384HomeNET Pro* transfer Speed256kbps384kbps448kbpsUpload Speed256kbps384kbps448kbpsmonthly ChargeRM 78RM 98RM 138One-Time InstallationRM 120RM 120RM 120(Author/ unknown, Timebroadband.time.net.my, 2009)The coverage of TIME BroadbandBuildingsPostcodeCasa Vista Condominium50480Mont Kiara Astana50480Mont Kiara Mozart predominate50480Mont Kiara Damai50480Mont Kiara Palma50480Mont Kiara Pelangi50480Mont Kiara Pines50480Mont Kiara Sophia50480Sri Wangsaria Condominium50480 fling Court Condominium75050Suasana Sentral Condo50470(Author/ unknown, Timebroadband.time.net.my, 2009)* Giga broadbandIts another DSL applied science known as Very high bit-rate Digital Subscriber Line (VDSL) provides an incredible amount of bandwidth, with speeds up to a bout 54 megabits per second (Mbps). VDSL earnings Sdn Bhd is ready to bring Giga broadband using VDSL engineering science to the end users to enthral true broadband speed running internet applications such as business portal, video on demand, voice over broadband, video bouncing and other contents that require high bandwidth.Costs and speeds of giga broadbandresidential (Author/ unknown, Vdslnetwork.com, 2009)The coverage buildingsAsiaLife BuildingAvenue KBangunan MBSA, Shah AlamCasa Vista CondominiumChulan TowerCrowne PlazaEmpire TowerHotel IstanaKenanga International, KLKompleks AntarabangsaKUB.ComLee RubberMahsa College(Author/ unknown, Vdslnetwork.com, 2009)* TM streamyxStreamyx is Malaysias postmortem 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 informed with the complex applications and heav y websites that are now in vogue.With Streamyx broadband well be able toperpetually onlineenjoying unlimited usage for a pertinacious rate, andDownloading data at lightning speeds of up to 4.0MbpsCosts and speedsPackageDownloadSpeedUploadSpeedMonthly PriceStreamyx 384kbps384kbps128kbpsRM20 for 10hrs additional usage 5 sen/min (without modem)Streamyx 512kbps512kbps256kbpsRM44 for 60hrs additional usage 1 sen/min (without modem)RM66 (without modem)RM77 (with modem)Streamyx 1.0Mbps1.0Mbps384kbpsRM88 (without modem)RM99 (with modem)Streamyx 2.0Mbps2.0Mbps384kbpsRM188 (with modem)Streamyx 4.0Mbps4.0Mbps512kbpsRM268 (with modem)(Author/ unknown, streamyx.com.my, 2009)The coverage of TM streamyxYou 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 takings (e.g. STX 0355195560)Send it in to 33535And wait for the replyComparison between the three mentioned service providersReferring to our c ase (home network for five users) we should have an internet connection with chance onment 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. benefit providerSpeedMonthly costsAvailabilityTM streamyx2.0MbpsRM188 (with modem)Available in our buildingGiga broadband2.0MbpsRM148 (with modem)Unavailable in our buildingAs 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.* stock 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 passel 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. accord to the information mentioned, we can specify 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 worksCable Internet works same as cable television works. Cable providers use a transferral of backbone visual 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 quadruplex channels. Most of these channels are used for television transmission, but some are daybooked 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 midriff. 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 bill of fare 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-internetcable_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 connectionTV 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 internet1- Advantages of cable internetCable 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 dismission 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 y our internet speed.2- Disadvantages of cable internetCable internet service is shared between you and other people on your network segment.Cable internet service is not isosceles 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 providersCable internet service is not available in Malaysia.* artificial satelliteSatellite high speed internet service is a applied science 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 poignant 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 change inte grity 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 move 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 assigned to avoid ruffle with other satellites. The attached picture gives more explanations.VSAT Star-shaped NetworksEquipments that we need in order to have satellite internet connectionApproximately a two-foot by three-foot dishTwo modems (uplink and downlink)Coaxial cables between dish and modem Advantages and disadvantages of satellite internetAdvantages 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 connectionThe 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 acting games online or when making internet phone calls.-Satellite Service providers in Malaysia* shining CompanyThere two satellite services provided by sharpserviceavailabilityavailable speedsapproximate monthly cost flip Ku bandanywhereUp to 1512kbpsStarts from 350RM per monthSmart C bandanywhereUp to 2MbpsStarts from 998RM per month(Author/ unknown, smartmalaysia.com, 2009)* Broadband over Power Line (BPL)Broadband over pow er line is a new engine room that allows the users to access to the global network (internet) by plugging computers into any electrical outlet. This engineering science is almost similar to the other types of DSL in speed and costs. In short, the BPL is defined as a engineering that allows Internet data to be transmitted over utility power lines. How BPL worksdiagram(Author/ unknown, howstuffswork.com, 2007)BPL works by modulating high- oftenness receiving set waves with the digital signals from the Internet. These receiving set setcommunication waves will be ply into the utility gridiron 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 transmit ted 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 connectionbpl1(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 in concert.-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 BPL1- 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 communicationBPL 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 connectionsReferring to the information mentioned above, here is a table to sum 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 providertypespeedMonthly subscription feesTM streamyxDSL1.0 Mpbs99 RMSmart Ku bandSatellite1.0 Mpbs350 RMAs 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 technologyComputer networking is becoming more im pointd 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. tardily 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 mo bile data devices and nearby Wi-Fi access point).(Author/ unknown, phonescoop.com, 2004) Description of the technologies involvedWi-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 technologyWi-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 fas ter compared to other types of wireless technologies.Wi-Fi implementationThere 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 network1-ADSL modem usually given by the internet service provider.2-radio receiver router (access point) usually comes with four RJ45 network ports.http//www.datapoint.com.mk/catalog/images/linksys%20wireless%20access%20point.jpg3-Wireless organiser 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 encircling(prenominal) Connect I nterface, this is the name given to a type of port inwardly the pc, which enables the user to add thing such as network cards, modems, sounds cards.dlink_pci_dwl528USB 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.jpgSoftwareThere 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 match to the hardware needed for implementing a Wi-Fi home network, the costs will be as it is shown in the attached table.hardwarePriceLinksys wireless router WRT54G2168RMDSL modemProvided by StrymexWireless adapter Linksys USB dongle140RMSo the total costs of implementing Wi-Fi technology is 308RM.*operational requirem ents of Wi-Fi technology-SafetyWi-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 mechanismsThere 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 thickenings to the access point. SSID will be broadcasting to be seen by the leaf nodes. 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 ac cess 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 unseeyn 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 learn 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 co nfused compared to WAP encryption.3-WPA/WPA2 is the short form of Wireless Protected Area. It was created as a partial derivative 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 temporary Key IntegrityProtocol (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 psyche 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 certificate server to trust 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