Flashcards
Communication
Cards in this deck (14)
- 1Define baud rateThe number of signal changes in a medium per second
- 2Define bit rateThe number of bits of data transmitted per second
- 3Define bandwidthThe range of frequencies a communications medium is capable of transmitting
- 4Define latencyThe time between an action being initiated and its effect being noticed
- 5Describe what is meant by a networking protocolA set of rules for communication between devices
- 6Describe serial data transmissionData is sent one bit a time through one communication line
- 7Describe parallel data transmissionMultiple bits of data are sent simultaneously through multiple parallel communication lines
- 8Explain the issue of skew- Each communication line in parallel transmission has slightly different electrical properties
- This means the time taken for a bit to be transferred is different for each line
- Resulting in bits sent together not being received together - 9Explain the issue of crosstalkWhen communications are tightly packed, interference between lines can cause data to leak from one line to another, causing data corruption
- 10Give 2 advantages of serial transmission over parallel- No skew or crosstalk issues
- Cheaper as only one cable is used - 11Explain synchronous transmission- Transmitter and receiver are synchronised by a common clock
- Signals are sent at regular intervals
- Signals arrive in the order they were sent - 12E- Duration of transmission is indicated by start and stop bits
- No need for a common clock - 13Describe the purpose of the start bit in async transmissionTo synchronise the transmitter clock to the receiver clock
- 14Describe the purpose of the stop bit in async transmissionTo give time for the receiver to process the data
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- A level Computer Science Flashcards on Communication, created by Blender Animator637 on 25/02/2026.
- Created by
- Blender Animator637 · Feb 2026
- Updated
- Feb 25, 2026
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