What is a Monitor?

A monitor is the screen you look at when using a computer. It is an output device, meaning it shows information produced by the computer.

How a Monitor Works

The monitor receives signals from the graphics card and turns them into pictures. Millions of tiny dots called pixels combine to form the image you see.

Types of Monitors

• LCD: Liquid Crystal Display, common and affordable.
• LED: Uses LED backlighting for better brightness and lower power use.
• OLED: Each pixel lights itself, giving deep blacks and rich colours.

Key Features

• Resolution: The number of pixels, such as 1920x1080 (Full HD).
• Refresh rate: How many times the screen updates per second, in hertz (Hz).
• Screen size: Measured diagonally in inches.

Why It Matters

A good monitor reduces eye strain and improves work quality. For design and programming students, colour accuracy and sharpness are especially important.