COMPUTER HARDWARE - 2



  • Peripheral Devices :- The devices which are connected to our computers externally known as Peripheral Devices. These devices are further divided into two categories -----
  1. Input Device
  2. Output Device

  1. Input Device :- The devices which are responsible to accept input from the user, known as input device.
          Some Input devices --------
        
      → Keyboard :- It is a flat piece of plastic board  with several buttons which are arrange on it. Normally, every keyboard have 108 - 112 keys available.

There are three categories of keys -------

      ✳️ Alphanumeric Keys [ A - Z, 0 - 9, . , , etc]
      ✳️ Special Keys [ alt, ctrl, enter, etc.]
      ✳️ Functional Keys [ f1, f2,.....f12]
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