Computer devices and their categorizations

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  •  Differences between INPUT and OUTPUT devices
  1. A hardware device used to send data to the computer is an input device. Whereas, an output device is such a device which displays or delivers information or data from the computer to the user.
  2. An input device converts the user entered data and gestures into machine or binary language for the system to interpret. But, the output device interprets the machine language provided by the system to then display user acceptable format of data.
  3. An input device is very complicated as they have to convert the user language and processes to the machine language for the system. On the other hand, an output device is much simpler as they only display the results and don't have to carry out any kind of system processes.
  4. Some main input devices are Keyboard, Mouse, Stylus, Joystick, Microphone, etc. And some output devices are Monitor, Speaker, Projector, Printer,etc.
  • Various types of computers
  1. Supercomputer: It is the most powerful type of computer for performance and data processing purposes. It is mainly used by industries and experimental labs for carrying out research and exploration,
  2. Mainframe Computer: They might not be as powerful as a supercomputer but still they are very powerful and expensive. They are mainly used by industries and government organizations for carrying out their official works and storing their registry data.
  3. Minicomputer: It is a system that is much more inexpensive than a supercomputer and a mainframe computer but is still used by a small industry or company to process data. It is also called a "mid-range computer". 
  4. Microcomputer: Personal computer and laptops and all types of handheld computing devices are known as microcomputers. It is very useful and vastly growing popular. It is mainly designed for entertainment,education and work purposes.

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