Thursday, 19 January 2012

Data Processing Cycle

Data Collection and Preparation to produce a Source Document

To prepare it to be directly input at the Data Input stage. This means there is less chance for errors and is much faster than manually typing it in.

After this the Data is Processed and Stored

Once it is stored the Data Output gives output in one of three formats: File, Paper or/and Screen

Direct Data Input Methods Are:
MICR - Magnetic Ink Character Recognition
OCR - Optical Character Recognition (Hardware: Scanner. Software: OC Software)
Mark Sense Card - lottery
Bar Code - DUH!
Smart Card - own microprocessor chip
Magnetic Stripe - Less memory than smart cards, easier to forge and easier to damage

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