Basic Component Of Computer Hardware

INPUT UNIT:-                                                                Data and instruction are entered into the computer through an input unit using different-different input devices.

Ex: -   keyboard, mouse, joystick, touch screen, trackball, track pad, etc.

OUTPUT UNIT: -                                                            The computers communicate with user through output unit using different-different output devices.

Ex: -   monitor, printer, speakers, etc.

STORAGE UNIT: -                                                        The storage unit of computer is basically divided into two main categories.

    1.    PRIMARY STORAGE: -                                                         Primary storage of a computer is also known as main memory. Now a day’s semiconductor memory are used as primary storage.

    2.    SECONDARY STORAGE: -                                                        Secondary storage of a computer is also known as auxiliary storage. Hard disks are used as secondary storage.

CENTRAL PROCESSING UNIT (CPU):-                              CPU is the brain of computer; all the calculation and comparison take place inside the CPU. It two parts these are as follows-

   1.   ARITHMETIC LOGIC UNIT (ALU)

    2. CONTROL UNIT

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