2 Apr
2003
2 Apr
'03
1:12 p.m.
how many people remember what the other two functions
were?
Game ( Joystick ) Port ?
In seeing if I could remember what they were, I came across a web site
called ... "die Jumper Site - The Jumper Site"
with jumper settings on A LOT of vintage hardware. In fact, it looks like
scans of the MicroHouse Technical Reference Library, so it might not last.
Samples of just the 8 bit ISA I/O cards
Text format at ... http://www.totalhardware.de/i/iio8_t.htm
Pictures format at ... http://www.totalhardware.de/i/iio8_i.htm
Pictures and Text format at ... http://www.totalhardware.de/i/iio8_1.htm
Main Page at ...
http://www.totalhardware.de/
Best Regards
At 04:42 PM 4/2/03 -0800, you wrote:
>
incompatible, and they had a giant surplus of serial (RS232 and current
> loop) cards that nobody wanted, so they provided a "FREE" serial card to
On Thu, 3 Apr 2003, Tony Duell wrote:
Why did 'mobody' want them? A serial port
is a very useful thing to have...
Because they occupied an entire slot (out of 5 on the PC), and other
companies sold "multifunction" cards that could use the same slot for
serial, parallel, clock, and memory. Most of those were marketed as SIX
functions - how many people remember what the other two functions were?
However, the IBM "Async" card could ALSO do current loop, which most of
the after market cards could NOT.
One of the most stupid things IBM ever did was in
the 5155 PortablePC.
It has my nomination for the silliest design. (particularly when compared
with the comparable Compaq machine which has all slots usable)
--
Grumpy Ol' Fred cisin(a)xenosoft.com