s100 busses!

From: allisonp_at_world.std.com <(allisonp_at_world.std.com)>
Date: Wed May 10 07:21:33 2000

On Tue, 9 May 2000, Ron Hudson wrote:

> Does anyone still sell s100 based computers?
> Aren't they used still for process controll and automation?

Effectively not for many years.

> 2nd question
> How did the control panel of the IMSAI work, was it controlled by a rom program
> that lit the leds and read the switches?

There was no rom in the base imsai. The frontpannel was all hardware and
worked by inserting wait states in the instruction flow effectively
stopping the micoprocessor at every cycle.

Allison
Received on Wed May 10 2000 - 07:21:33 BST