Have an old monitor and a Raspberry Pi lying around? Put them both to great use with this DIY wall-mounted display.

How to calibrate resolution and scaling What you need to know: Your computer’s display resolution should always equal your monitor’s native resolution.

You can add an extra display to your Mac (and in some cases three displays). Here's what you need to connect an external monitor, including the right adapter.

Computer monitors are big and splashy, and can reveal sensitive information or activities to bystanders. An additional layer of security (and fun) can be added to your computer's LCD display by ...