IBM PC/AT 5170
When Intel made the 386 processor,
(allowing Virtual Memory, and tasks)
IBM did not jump on it.
Maybe IBM thought the 32 bit internal
386 pc's would cut into their small machine
market...
The 386 clone market exploded!
Intel made an upgrade card for
True Blue IBM shops...
The Intel Inboard 386 plugged into a
PC/AT EISA slot, and a processor
ribbon cable plugged into the 286 socket
on the motherboard, making this a 386.
******
- IBM Developed a TIMI design method
for the AS/400 (server) computers
allowing different processor architectures
to run the same code without recompiling ...
1981 IBM PC-5150 + Breakthru 286 card...
4.77 Mhz 8088, improved CGA, TI Sound.
Released in 1984, 3 years after 5150 (1981)
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