|(computer)||IBM PC AT - ("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.