DuckCorp Dico

Found 2 definitions

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   at
      1. <character> commercial at.
      2. <networking> The country code for Austria.
   
                   
                 

2.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   IBM PC AT
   AT
   PC AT
      <computer> ("Advanced Technology") A version of the IBM PC,
      released in Aug 1984 with an Intel 80286 processor, a 16-bit
      bus, a medium-speed hard disk and a 1.2 megabyte
      floppy disk drive.  It had a larger case than the PC,
      which allowed it to accept "tall cards".
      The AT keyboard corrected the PC's non-standard placement of
      the return and left shift keys but shortened the backspace
      key, making it harder to reach.
      (1995-03-01)