A computer monitor is the display that shows a computer’s visual output — the screen you read and interact with, as opposed to the box that does the computing.1
Overview
Most monitors are flat-panel displays built on LCD technology (with IPS, VA, or TN variants) lit by LEDs, while higher-end models use OLED for deeper contrast and true blacks. The main specifications are size (measured diagonally), resolution (the pixel count, such as 1920×1080 or 3840×2160), and refresh rate (how many times per second the image updates, in hertz).
A monitor is an output peripheral: it receives a video signal from the computer’s GPU over HDMI, DisplayPort, or USB-C and turns it into light. It does no computing of its own — swap the box behind it and the same panel shows a different machine.
Panel types
The panel technology sets the trade-off between color, contrast, speed, and price:
| Panel | Strength | Weakness | Typical use |
|---|---|---|---|
| IPS | Wide viewing angles, color | Lower contrast | General, creative |
| VA | High contrast | Slower pixels | Media, general |
| TN | Fast, cheap | Poor angles/color | Budget, e-sports |
| OLED | Deep blacks, fast | Cost, burn-in risk | Premium, HDR |
Where it fits
A monitor pairs with any desktop computer, mini PC, or laptop, while an all-in-one computer builds the same panel into the system. Picking one is a trade-off: office and coding work reward resolution and screen area, gaming rewards high refresh rate and low latency, and photo or video work rewards color accuracy. For a GopherTrunk bench, screen area pays off — a wide or tall monitor keeps a waterfall, constellation plot, and call log all visible at once.
Sources
-
Computer monitor — Wikipedia, on display devices for computers. ↩