3 ms·
The architecture is very different. You have every piece of I/O handled by its own subsystem; in the old days when they had lots of green screens they had FEPs
by patrickgzill 17y ago
The architecture is very different.
You have every piece of I/O handled by its own subsystem; in the old days when they had lots of green screens they had FEPs, front end processors, that took care of all the busywork for displaying and accepting data - the main CPU never saw any of that. Same thing with networking, with disk I/O, you name it.