A monitor is a piece of computer hardware that displays the video and graphics information generated by a connected computer through the computer's video card . Monitors are similar to TVs but usually display information at a much higher resolution.

A monitor is a display device like a TV screen, that interprets and displays the graphical output signal from your computer’s graphics card and displays it on the screen. This enables you to view the display interface in order to interact with the computer using various peripherals like a mouse or keyboard.

A computer monitor is an output device that displays information in pictorial form. A monitor usually comprises the visual display, circuitry, casing, and power supply.

A monitor is an electronic visual computer display that includes a screen, circuitry and the case in which that circuitry is enclosed. Older computer monitors made use of cathode ray tubes (CRT), which made them large, heavy and inefficient.