Computer literacy: computer hardware and software

A computer does not substitute for judgment any more than a pencil substitutes for literacy. But writing without a pencil is no particular advantage. (Robert McNamara)

What is a computer?

The purpose of a computer is to process data into information (data → information). A computer may be defined literally as a ‘machine that computes’ or as ‘a machine that can be programmed to manipulate symbols. Computers can perform complex and repetitive procedures quickly, precisely and reliably and can quickly store and retrieve large amounts of data.’1

How did the computer develop?

Five ages of the computer

Depending on the definition and how far back in time one wishes to journey, the origins ...

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