4 Jan
2013
4 Jan
'13
12:19 p.m.
Polemon writes:
Iconic of the
PC-System (that is, an IBM PC kind of computer) would be a CD,
when looking at removable storage media.
It's funny how for many, the "IBM PC 5150" is not an "IBM PC kind of
computer".
I'm sure somebody here did it. 5150 with a CM153 card for Philips CM100 player?
Tim.
4 Jan
4 Jan
12:44 p.m.
On Fri, 4 Jan 2013, Shoppa, Tim wrote:
It's funny how for many, the "IBM PC
5150" is not an "IBM PC kind of
computer".
Yeah. WTF is "PC era"?
I'm sure somebody here did it. 5150 with a CM153
card for Philips CM100
player?
I used CD-ROMs [with proprietary interfaces] on 5160s a lot.
I tried one (Hitachi?) on a 5150, but the boot floppy was inconvenient
Drivers prior to DOS 3.10 were especially awkward.
Yes, it could be done, but I would agree with the "don't even try"
12:46 p.m.
New subject: Early CD-ROMs was: NASA computers circa 1969
Shoppa, Tim wrote:
I'm sure somebody here did it. 5150 with a CM153
card for
Philips CM100 player?
Yes. That was the test platform for an early CD-ROM company
I worked for. We also had a Meridian Data CD-Publisher.
It wrote 9-track tapes that we sent to PDO Holland. They
would send us back some count of CDs along with the glass
master. That was what? 1983 or maybe 1984. I had one of
those glass masters in my office for a while but I've lost
it somewhere along the way.
Bill S.
10:02 p.m.
Tim Shoppa wrote:
I'm sure somebody here did it. 5150 with a CM153
card for Philips
CM100 player?
I lost track of the thread somehow, so I'm not sure *what* somebody here
did.
I have some CM100 players but no CM153 cards. I think the player is
equivalent to the DEC RRD50, so it should also work with a KRQ50 (M7552)
for a Qbus system, but I don't have one of those either.
Some years back I reverse-engineered two versions of the CM100 firmware
(8051). The interface uses DA15 connectors with four EIA-422
differential pairs. If they had made the interface only a *tiny* bit
different, they could have supported eight CM100 drives on a single host
adapter.
The CM110 is the same drive with an additional board that interfaces it
to SCSI, but I've never gotten my hands on one.
Eric
8 Jan
8 Jan
7:02 p.m.
I think it was an episode of computer chronicles (via archive.org) I was watching that was
showing off a new cd based encyclopedia. Bragging about the capacity and amount of cds and
it could be used on the $800 cd player for the ibm pc.
I think the episode of dr who representing our history with "the ipod" (a
jukebox) is pretty likely though.
Technically 50 years from right now would be quad core processors and lcd flat panels.
I'd almost dare to say an fps gaming rig might represent 2012s home computer.
-----Original Message-----
From: Eric Smith <eric at brouhaha.com>
Sender: cctalk-bounces at classiccmp.orgDate: Fri, 04 Jan 2013 23:02:27
To: General Discussion On-Topic and Off-Topic Posts<cctalk at classiccmp.org>
Reply-To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Subject: Re: NASA computers circa 1969
Tim Shoppa wrote:
I'm sure somebody here did it. 5150 with a CM153
card for Philips
CM100 player?
I lost track of the thread somehow, so I'm not sure *what* somebody here
did.
I have some CM100 players but no CM153 cards. I think the player is
equivalent to the DEC RRD50, so it should also work with a KRQ50 (M7552)
for a Qbus system, but I don't have one of those either.
Some years back I reverse-engineered two versions of the CM100 firmware
(8051). The interface uses DA15 connectors with four EIA-422
differential pairs. If they had made the interface only a *tiny* bit
different, they could have supported eight CM100 drives on a single host
adapter.
The CM110 is the same drive with an additional board that interfaces it
to SCSI, but I've never gotten my hands on one.
Eric
9:22 p.m.
On 1/8/2013 7:02 PM, barythrin at gmail.com wrote:
I was watching that was showing off a new cd based
encyclopedia.
I managed to snag a copy of the Britannica version on CD's. It
lives on
the shelf next to the National Geo set, just like books, but now in CD form.
Will take it to the friends of the library sale when I croak and not be
able to get $0.10 each for them, and they'll go to the landfill.
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