AT

1. Short for Advanced Technology, AT is an IBM computer introduced in 1984. The base model AT computer contained an 80286 processor, 256k of RAM and a 1.2MB floppy disk drive. The AT was also available with 512k of RAM and a 20Mbyte disk drive.

2. Name of the @ symbol found above the two on a standard U.S. keyboard. When describing an e-mail address. You will commonly hear someone say something similar to "support 'at' computerhope 'dot' com", which is the same as support@computerhope.com.
   
   A full listing of computer keyboard keys can be found by clicking here.
   

3. Windows command line command. See our at command page for additional information about this command.

4. Modem strings used to initialize and control a computer modem. See our AT command page for a listing of the basic Hays compatible legacy modem AT strings.

5. Short for Azores Time.

Also see: AT Keyboard, E-mail, Form factor, XT