A computer display monitor, usually called simply a monitor, is an output device that is part of your computer's display system. A cable connects the monitor to a video adapter (video card) that is installed in an expansion slot on your computer�s motherboard. This system converts signals into text and pictures and displays them on a TV-like screen (the monitor).

A monitor a physical unit that is separate from other parts of the computer. Notebook computers don’t have monitors because all the display and related parts are integrated into the same physical unit with the rest of the computer. In practice, the terms monitor and display are used interchangably....

An input device is a peripheral used to transfer data from the outside world into a computer system. In other words, it is any machine that feeds data into a computer.

Input devices convert the user's actions and analog data (sound, graphics, pictures) into digital electronic signals that can be ‘handled’ or ‘read’ by a computer. Digital data (such as from barcode readers, scanners, etc.) does not require any conversion and is input direct into a computer. It is through input devices that a user exercises control over a computer, its operations, and outputs....