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Input Device

              An input device is used to give instructions, data, or control signals to a computer. It acts as a way for you to
              communicate with the computer through commands. For example, a keyboard lets you type text, a mouse
              lets you point and click, and a microphone lets you record sound. These devices translate your actions or
              inputs into a form that the computer can understand and process. Without input devices, you wouldn’t be
              able to interact with your computer or enter data.

              Example: keyboard, mouse, joystick, scanner, web camera, etc.
              Output Device

              An output device is used to show or produce the results from a computer. It takes the information that the
              computer has processed and turns it into something you can see or hear. For example, a monitor displays

              what’s on the screen, a printer makes physical copies of documents, and speakers play sound. These devices
              help you understand and use the information the computer has created. Example: Printer, plotter, speaker,
              monitor, etc.
              Peripherals Devices

              Peripheral  devices are external gadgets that connects to a computer, like keyboards, mice, printers and

              scanners. They make your computer more useful by allowing you to type, click, print, scan and store data.
              Peripherals devices can be categorised as follows:

              Input Devices
              There are various types of input devices. Some of the common input devices are as follows:

              Keyboard

              Keyboard  is a  standard  input  device.  It is mainly used  to  type  text
              and to send the instructions  to a computer with the help of keys.
              Keyboard keys are the buttons that represent alphabets, numerics,
              alphanumerics and special characters. The keys can be used individually
              or in combination with other keys. The keyboard normally contains 101 to 108 keys.
              Depending on the position or placement of the keys, the layout of a keyboard comes in various styles such
              as QWERTY, QWERTZ, AZERTY and DVORAK. QWERTY keyboard is the most commonly used keyboard. It
              is based on the English language. Its name is derived from the sequence in which six alphabetical keys are
              positioned on the upper line of the keyboard. AZERTY type keyboard is mostly used in France (‘A’ and ‘Z’
              characters replace ‘Q’ and ‘W’ on such keyboards). QWERTZ type keyboard is widely used in Germany and
              Central Europe.

              Mouse
              Mouse is a handheld pointing device that is used on a flat surface and is represented by a
              pointer on the screen. The pointer on the screen moves when the mouse is moved by the
              user. A mouse generally consists of two buttons and a scroll wheel on its top. By clicking the
              buttons of a mouse, the user gives instructions to the computer. The mouse was invented
              by Douglas Engelbart.







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