the ibm xt microcomputer was released in the market as model 78.
when was the ibm xt microcomputer released in the market?
model 78
the ibm personal computer xt, often shortened to the ibm xt, pc xt, or simply xt, is a version of the ibm pc with a built-in hard drive. it was released as ibm machine type number 5160 on march 8, 1983. apart from the hard drive, it was essentially the same as the original pc, with only minor improvements. the xt was mainly intended as an enhanced ibm pc for business users. later floppy-only models would effectively replace the original model 5150 pc. a corresponding 3270 pc featuring 3270 terminal emulation was released later in october 1983. xt stands for extended technology.
ibm personal computer xt
bullet::::- mif-fm7: for the fujitsu fm7.









































bullet::::- mif-ipc: for the ibm pc/ibm xt. it turned out not to work reliably with 286 and faster processors. early versions of the actual pcb had if-midi/ibm as a silk screen.









































bullet::::- mif-ipc-a: for the ibm at, works with pc and xt as well.









































bullet::::- xanadu musicom ifm-pc: for the ibm pc / ibm xt / ibm at. this was a third party midi card, incorporating the mif-ipc(-a) and additional functionality that was coupled with the oem roland mpu-401 bob. it also had a mini audio jack on the pcb.
mpu-401