Flashcards
Computing paper 2
Cards in this deck (11)
- 1what is the total number of characters allowed by ASCII?127
- 2Explain the limitations of ASCII for worldwide communications?Doesnt allow for other languages.
ASCII is 7 bit.
highest number of characters is 128.
Many languages have more than a 128 characters. - 3Explain why the cache size affects the performance of the CPU.The larger the cache the more instructions can be processed at once.
- 4What is 00110101 +0100110110000010
- 5State two differences between ASCII and UNICODE?Allows more values and all languages
- 6What is colour depth?The number of bits used to represent each pixel
- 7How many colours can be represented by a 2 bit colour depth?2 x 2 = 4
- 8What is sample resolution?is the number of bits per sample
- 9What is sample rate?Number of samples taken within a second
- 10two differences between ROM and RAM?ROM is non volatile.
Ram is volatile. - 11Give two examples of secondary storage?Solid state drive and optical drive.
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- Flashcards on Computing paper 2, created by Aiden Holton on 28/03/2017.
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- Aiden Holton
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