A computer is an electronic device, operating

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A computer is an electronic device, operating under the control of instructions (software) stored in its own memory unit, that can accept data (input), manipulate data (process), and produce information (output) from the processing. Generally, the term is used to describe a collection of devices that function together as a system.2 What is a Computer?

Devices that comprise a computer system 3 Printer (output) Monitor (output) Speaker (output) Scanner (input) Mouse (input) Keyboard (input) System unit (processor, memory…) Storage devices (CD-RW, Floppy, Hard disk, zip,…)

Computers can perform four general operations, which comprise the information processing cycle.

 Input  Process  Output  Storage

4 What Does a Computer Do?