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Computer and its accessories [Basics]


On this lesson is made for all those who wants to get familiar with different accessories of computer. We will discuss about all computer accessories and their use. So here is the list of devices / accessories that can be connected to a computer to perform a task.

  1. Monitor: Its is the main output device that gives visual output to users. 
  2. Keyboard: This is the main input device. User can input text using keyboard. A standard keyboard consists of 110 keys.
  3. Mouse: Mouse is another input device. It helps for clicking or scrolling objects. A stabdard mouse contains 3 buttons: left click, right click and the scroll button.
  4. Cabinet: It consitst of of all the internal hardware components of a computer that includes mother board, CPU (Central Processing unit), RAM (Random Access Memory), ROM (Read Only Memory), Hard Disk, CD drive and many more.
  5. Hard Disk: This is the main storage unit of a computer. It can store all kind of data including documents, videos, audios, games, images etc.
  6. CD / DVD Drive: It is a device used to read / write CD or DVD. So this device acts as both input and output device.
  7. Printer: It is another output device that produces printed output on paper.
  8. Scanner: It can covert the printed document into digital content like image, document, etc. It one of the input devices.
  9. Adapter: An adapter is a device that is used to connect two or more devices that cannot be directly connected within themselves.
  10. Router: Router is a networking device that is used to build a network of computers. Router helps to forward the data packets over the internet.
  11. Modem: 
  12. Joy Stick
  13. Light Pen:
  14. USB Drive / Flash Drive / Pen Drive:
  15. Headphone: 
  16. Speaker:
  17. Mic (Internal / External):
  18. USB Cable: 
  19. HDMI Cable: 
  20. Data Cable:


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