Components of the computer basically can be categorized into :

• INPUT :

   

  • Any piece of hardware that is used to put data into your computer.

    • Data is the raw facts given to the computer.

    • Programs are the sets of instructions that direct the computer.

    • Commands are special codes or key words that the user inputs to perform a task, like RUN "ACCOUNTS". These can be selected from a menu of commands like "Open" on the File menu. They may also be chosen by clicking on a command button.

    • User response is the user's answer to the computer's question, such as choosing OK, YES, or NO or by typing in text, for example the name of a file.

   

• OUTPUT :

• Any piece of hardware that displays, prints, or otherwise moves data out of your computer or representing information from a computer.

• STORAGE :

• Storage refers to the media and methods used to keep information available for later use. Some things will be needed right away while other won't be needed for extended periods of time. So different methods are appropriate for different uses.