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9. What is output device?
10. How can we use storage devices?
10. Read Text B:
Text B
The Four Functions of a Computer
The four functions of a computer actually explain the core
reasons why it was built. They include:
– Data input.
– Data processing.
– Information output.
– Data and information storage.
1. Data Input
Every computer is designed with data input as a first function,
an activity which is accomplished via input devices.
Data entry is done manually, automatically or both. Manual
input is done via add-on peripherals like the keyboard, mouse and
stylus. Input can also be accomplished via vocal dictation applica-
tions and body gestures peripherals like Kinect and biometric de-
vices.
Data may be entered into a database, spreadsheet or other
forms of a computerized work area.
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