Wednesday, June 1, 2011

Hierarchy of Data

Hierarchy?

Meaning: A series of ordered grouping in system, beginning with the smallest unit to the biggest


Bit : Smallest unit of data the computer can store that consist of binary 1 and 0 for

ON and OFF.

Byte : Collection of eight bits. A byte represents a character.

Field : Unit of data consisting of one or more character.

Record : A collection of related fields.

File : A collection of related records.

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