Ict- Information processing

is raw facts and figures e.g. readings from sensors or survey facts

is processed data

is derived from information which has rules applied to it.

Garbage in Garbage Out

• takes up less memory
• faster to input
• easier to do searches on standardised data

• Improved speed of processing
• improved speed of searches and sorts
• A variety of outputs available
• improved variety of services
• increased security
• less storage space used

• cost of purchasing a computer
• over reliable
• power cuts
• Transcription/typing errors
• transposition errors
• data entered into the wrong format

• Range checks-data is between stated ranges
• format checks-dates
• presence checks-there must be a character present in a particular place
• check digits-number added to a code