1,048,576 bytes, or 1024 kilobytes. A typical MP3 song is a few MB.

8 bits lumped together. Represents a single character, like the letter ‘A’ or a dollar sign.

Features that restrict content and computer use. Handy for protecting kids online.

Accessing a computer over a network. Can be handy but also opens security holes if not set up right.

The smallest unit of data. It’s either a 1 or a 0, corresponding to an electrical switch being on or off.

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.

Like a super user. Has permission to install programs and change system settings.