From Wikipedia, the free encyclopedia.
AT or at may stand for:
- acceptance test
- Advanced Technology, in IBM PC AT
- aero triangulation
- alimentary tract
- anti-terrorism (see also: counter-terrorism)
- astatine (At), chemical symbol for the chemical element
- at
- commercial at: the punctuation symbol "@", now principally used in e-mail addresses.
- ATtention, part of the Hayes AT command set for modems
- at (Unix command) to schedule tasks to be performed at a later date
- audit trail
- Austria (ISO country code)
- automatic transmission
