Peripherals Devices in Computer Organization

A Peripheral Device is defined as the device which provides input/output functions for a computer and serves as an auxiliary computer device without computing-intensive functionality.

Generally peripheral devices, however, are not essential for the computer to perform its basic tasks, they can be thought of as an enhancement to the user’s experience. A peripheral device is a device that is connected to a computer system but is not part of the core computer system architecture. Generally, more people use the term peripheral more loosely to refer to a device external to the computer case.

Classification of Peripheral devices:
It is generally classified into 3 basic categories which are given below:



  1. Input Devices:
    The input devices is defined as it converts incoming data and instructions into a pattern of electrical signals in binary code that are comprehensible to a digital computer.
    Example:

    Keyboard, mouse, scanner, microphone etc. 
  2. Output Devices:
    An output device is generally reverse of the input process and generally translating the digitized signals into a form intelligible to the user. The output device is also performed for sending data from one computer system to another. For some time punched-card and paper-tape readers were extensively used for input, but these have now been supplanted by more efficient devices.
    Example:

    Monitors, headphones, printers etc. 
  3. Storage Devices:
    Storage devices are used to store data in the system which is required for performing any operation in the system. The storage device is one of the most requirement devices and also provide better compatibility.
    Example:

    Hard disk, magnetic tape, Flash memory etc. 

Advantage of Peripherals Devices:
Peripherals devices provides more feature due to this operation of the system is easy. These are given below:

  • It is helpful for taking input very easily.
  • It is also provided a specific output.
  • It has a storage device for storing information or data
  • It also improves the efficiency of the system.


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