Up may refer to any of the following:

  1. Up describes a computer or software program is functional and ready for use. For example, the Computer Hope website is up since you can read this page. If the site was down, you would get an error when trying to load this page.

  2. One of four arrow keys that moves the cursor in an upward direction. In the picture, there are four arrow keys, and the top key is the up arrow key. If you are using the WASD keys for your arrow keys, the “W” key would be the up arrow key.

  • How to test if a website or web page is down.

Arrow key, Keyboard terms

  • Keyboard help and support.