< 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)