5 Jul
2010
5 Jul
'10
9:47 a.m.
On 7/5/2010 7:14 AM, Tim Shoppa wrote:
Shannon Spurling writes:
The drives look the same, but this is a system. It has a CRT and
Keyboard but they are cabled to the tower. On the mainboard there is a
couple of memory slots and four other expansion slots, one of which
holds the floppy controller. I think I am having power supply issues, so
I really need the pinout and specs for the power supply so I can figure
out what it is supposed to be.
Did all of these IBM systems have basic in rom?
Thanks
Shannon
I have this old IBM system. I think I
identified the CPU as an 8085.
The motherboard/ card cage looks like the one from the Datamaster. Thing
is, I can't find ANY info on it. It's a four piece system with a tower,
monitor, keyboard and printer. The tower is huge, and has dual 8"
floppies.
Do the tower and printer look anything like the stuff in the background
on
http://www-03.ibm.com/ibm/history/exhibits/pc/pc_9.html
According to the text this was a configuration where "two workstations
... permitted two people to use the system simultaneously", and maybe
the unit you have is the non-workstation component of the system (shared
printer access, maybe shared file access?)
Some of the keypunch-to-floppy units IBM sold in the 70's seemed to
me to be vaguely styled like the Datamaster. Maybe these also inspired
the Heath-Zenith 89.
Tim.