Flashcards
Data Exchange
Cards in this deck (15)
- 1Data Exchange - VOIPVOIP works by having a "codec" to digitise analogue voice signals, compress it, break it into data packets and then send it. The revers is performed at the other end.
- 2Data Exchange - Wireless ExchangeWireless communication usually uses radio waves to communicate however infrared is also used. For wireless communication to occur users need a Wireless Network Interface card. This lets them transmit data across the network and recieve information
- 3Data Exchange - Alternative Transmission methods (1 & 2)
- 4Data Exchange - Alternative Transmission Methods (1 & 2)
- 5Data Exchange - Alternative Transmission Methods (3 & 4)
- 6Data Exchange - Alternative Transmission Methods (3 & 4)
- 7Data Exchange - Simplex TransmissionSimplex transmission: sends data in one direction only. A radio broadcast is a good
example of simplex transmission. - 8Data Exchange - Half Duplex TransmissionHalf-Duplex Transmission allows you to transmit data two ways but not at the same time. e.g. walkie talkies
- 9Data Exchange - Full Duplex TransmissionFull duplex transmission allows you to transmit data two ways at the same time. e.g. mobile phones
- 10Data Exchange - Parallel TransmissionBits that make up a whole byte can be sent at one time over a of maximum 5 meters. e.g. printers
- 11Data Exchange - Serial TransmissionBits are transmitted one at a time over a single wire. This takes longer than parallel transmission but can be pefrormed over long distances. e.g. USB
- 12Data Exchange - Universal Serial BusUniversal Serial Bus (USB) is a serial transmission method which was designed to make all connections look the same.
- 13Data Exchange - Bi-directional TransmissionBi-directional transmission means transmitting data in two directions at the same time. e.g. fibre wire
- 14Data Exchange - Client Side ProcessingClient Side Processing is the use of code to provide interactivity on web pages without having to contact the server as it is built into the webpage.. This is faster than server side processing and is more secure as the code comes from the web page and not the browser. However some code only works on some browsrs and if you have a bad computer it can run slowly.
- 15Data Exchange - Server Side ProcessingServer side processing involves the use of scripts which reside and are run on a web server. This means that it works on all browsers, is more efficient as the code doesn't have to be downloaded, it could be faster as all the work is doen by the server which tend to be very powerful. However servers can sometimes be overloaded making them slow and hacked causing viruses to be sent to every computer that uses it.
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- ICT-BTEC (Data) Flashcards on Data Exchange, created by dominicbroadbent on 21/11/2014.
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- dominicbroadbent
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