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More cards in this set
Card 6
Front
a piece of software that replicates itself, can copy, destroy & corrupt data
Back
Card 7
Front
another name for a website
Back
Card 8
Front
a set of commands or instructions, a pre-programmed command
Back
Card 9
Front
consists of numbers, words, sounds and images which have no particular meaning e.g 110196
Back
Card 10
Front
data that has meaning e.g 11/01/96
Back
Card 11
Front
uniquely identifies a record e.g national insurance number
Back
Card 12
Front
store details about individual components that make up the image, might contain the command e.g draw a line from a to b
Back
Card 13
Front
ensures that data is sensible in the context in which it is being used in e.g range check
Back
Card 14
Front
covers a small area such as one site or building e.g a school or college
Back
Card 15
Front
covers a larger geographical area, most are made up from several LAN's connected together e.g the internet, pleased lines or satellite links
Back
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