The peripheral devices of a basic computer system does NOT include the :

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NTPC CBT 2 2016 Previous Paper 4 (Held On: 18 Jan 2017 Shift 1)
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  1. Printer
  2. Keyboard
  3. Monitor
  4. CPU

Answer (Detailed Solution Below)

Option 4 : CPU
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RRB NTPC CBT-I Official Paper (Held On: 4 Jan 2021 Shift 1)
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Detailed Solution

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The correct answer is the CPU.

Key Points

  • A peripheral device, also sometimes called an auxiliary device, is any connected device (internal or external) that provides a computer with additional functionality.
  • Peripheral devices fall into three main categories:
    • Input devices, which send data to the computer.
    • Output devices, which receive data from the computer.
    • Input/output devices, such as storage devices.
  • Examples:
    • Mouse
    • Keyboard
    • Webcam
    • Microphone
    • Monitor
    • Speakers
    • Projector
    • Printer
    • USB Flash Drive
    • External Hard Drive

Additional Information

  • A keyboard is a primary input device that allows users to input text into the computer or any other electronic machinery.
  • A monitor is an output device that displays a Video Display terminal or video display unit in the form of a document.
  • A CPU stands for Central Processing Unit that is responsible for executing instructions which constitutes a computer program.
  • Arithmetic and Logical unit reside inside it. 

Confusion Points CPU is not a peripheral device because a computer system can not work without a CPU.

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