Computing Dictionary
IBM PC AT definition
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)
