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The result we get after processing is called output.
The devices that are used to store data are called storage devices.
A computer works on the IPO (Input-Process-Output) cycle.
A computer needs instructions to do anything. These step-wise instructions are
called software.
A software that controls and manages all the activities of a computer system is
called system software.
The software that are designed to perform some specific type of jobs on a
computer are called application software.
Microcomputers, minicomputers and supercomputers are the three different
types of computers.
Exercise
Section A (Objective)
A. Tick ( ) the correct option.
1. Which of the following is an input device?
a. b.
c. d.
2. Which of the following is a processing device?
a. b.
c. d.
3. Which of the following is an output device?
a. Plotter b. Scanner
c. Touchscreen d. Mouse
15
A Computer System

