Flashcards
Computer Science 4.9 Communication
Cards in this deck (11)
- 1Serial CommunicationSends bits 1 by 1
- Cheap
- Reliable over long distances
- Slow, only one bit sent at a time - 2Parallel CommunicationSends multiple bits through different wires
- Only works over short distance
- More wires necessary (more expensive)
- Faster - 3Synchronous TransmissionSender and Receiver have the same clock to signal when to Send / Receive a bit
- Fast and reliable - 4Asynchronous TransmissionRelies on timing signals within the transmission to make sure the sender and receiver are sending / receiving at the right time
- Can be used over long distance
- Slower because it uses start and stop bits - 5Baud RateThe number of signal changes per second a medium can handle without losing data
- 6Bit RateThe number of bit sent per second
- 7BandwidthBandwidth is the width of a range of frequencies
- Directly proportional to bit rate - 8LatencyTime between first bit being sent and last bit being received
- 9Client - ServerClient sends request and server responds with a message
- Computers are nominated as clients
- The internet is an example of client-server - 10Peer-to-peerAll computer have equal status
All computers request services from and provide services to other computers
Eg. Bit-Torrent - 11—
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- Flashcards on Computer Science 4.9 Communication, created by Busta UK on 26/11/2020.
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- Busta UK
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