Settings that control what a user can access and modify. Useful for locking down sensitive files.

A secret phrase that grants access to an account. The longer and more random, the better.

For temporarily sharing your computer. Has very limited access to files and settings.

A normal account for day-to-day use. Can’t accidentally (or purposely!) mess up the system.

A profile for logging into a system. Can be an administrator (full control) or standard user (limited).

Audio from multiple speakers positioned around you. 5.1, 7.1, Dolby Atmos are popular setups.

High Dynamic Range. Heightens a picture’s dynamic range (contrast) for richer, more detailed images.

How many times per second a screen completely redraws itself. Higher rates mean smoother motion.

The number of pixels in an image or video frame. Higher resolutions mean more detail.

Playing media in real-time as it’s sent over the internet. Services like Spotify and Netflix use streaming.