2
Chapter 2 · Paper 1: Computer Systems
Data transmission
How data travels between devices and how errors are found and prevented.
3 topics0 free
Start this chapter Topics in this chapter
- 2.1
Types and methods of data transmission
PremiumLesson coming soonPackets, serial and parallel, simplex, half-duplex and full-duplex, and the USB interface.
- 2.2
Methods of error detection
PremiumParity checks, checksums, echo checks, check digits and automatic repeat request.
- 2.3
Encryption
PremiumLesson coming soonWhy data is encrypted and how symmetric and asymmetric encryption work.
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