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OCR GCSE Computer Science – Paper 2 1.4 Wired and Wireless Networks Bell Actvity (Duplicate Quiz) Time limit: 0 Quiz Summary 0 of 4 Questions completed Questions: Information You have already completed the quiz before. Hence you can not start it again. Quiz is loading… You must sign in or sign up to start the
OCR GCSE Computer Science – Paper 2 1.4 Wired and Wireless Networks Bell Actvity Time limit: 0 Quiz Summary 0 of 3 Questions completed Questions: Information You have already completed the quiz before. Hence you can not start it again. Quiz is loading… You must sign in or sign up to start the quiz. You
OCR GCSE Computer Science – Paper 2 Bell Activity – Setting up ad hoc networks (open Wi-Fi, tethering/personal hotspot) Time limit: 0 Quiz Summary 0 of 1 Questions completed Questions: Information You have already completed the quiz before. Hence you can not start it again. Quiz is loading… You must sign in or sign up
OCR GCSE Computer Science – Paper 2 1.3 Memory and Storage Bell Activity 1 Time limit: 0 Quiz Summary 0 of 1 Questions completed Questions: Information You have already completed the quiz before. Hence you can not start it again. Quiz is loading… You must sign in or sign up to start the quiz. You
OCR GCSE Computer Science – Paper 2 1.2 Memory Time limit: 0 Quiz Summary 0 of 1 Questions completed Questions: Information You have already completed the quiz before. Hence you can not start it again. Quiz is loading… You must sign in or sign up to start the quiz. You must first complete the following:
Data compression is the process of encoding data so that is needs fewer bits/bytes to represent it. Compression is useful because it helps reduce the consumption of expensive resources, such as hard disk space or transmission bandwidth over the internet. On the downside, compressed data must be decompressed to be used, and this extra processing may be detrimental to some applications.
Compression can be categorised into the following techniques:
| Source | Link |
|---|---|
| BBC Bite Size | https://www.bbc.com/bitesize/guides/zfspfcw/revision/10 |
| Craig N Dave | https://student.craigndave.org/videos/ocr-gcse-slr2-6-compression |