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Computing Keywords.

Emma-Hope Newitt Computing GCSE Englisch 18 Karten

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1Central Processing Unit (CPU)The main component of the computer. Carries out all the processing by fetching and executing instructions.
2Clock SpeedThe speed which the processor carries out instructions, measured in Megahertz (MHz) or Gigahertz (GHz).
3CoreEach single processor circuit capable of fetching and executing instructions.
4BitSmallest unit of data. Can take the value of '0' or '1'.
5BinaryBase 2 numbers. Only digits '1' or '0' are allowed.
6ByteSmallest addressable unit of data in a computer. Usually 8 bits.
7Gigabyte (GB) is..1024 megabytes
8Kilobyte (KB) is..1024 bytes
9Megabyte (MB) is..1024 Kilobytes
10Nibble is..Half a byte
11Terabyte (TB) is..1024 gigabytes
12Decimal (denary)Numbers expressed in base 10.
13HexadecimalNumbers expressed in base 16.
14OverflowA error caused by attempting to store a number that is too large for the number of bits available.
15ASCIIAmerican Standard Code for Information Interchange. It's a 7-bit character code.
16Character SetThe complete collection of characters that have been coded in a particular coding system.
17Unicode.At least 16-bit code. Defines what characters it encodes and then uses a suitable number of octets to store them as a number.
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