View Full Version : DR CP/M-86 for IBM Sold on eBay for $467.00

February 17th, 2015, 02:27 PM
What am I missing on this auction that this copy of CP/M would bring almost $500.00?

It appears to be version 1.1 for the IBM XT.


February 17th, 2015, 03:01 PM
Ignorance or lack of supply? I've seen early versions of CP/M, DOS, and Windows all reach close to that in the past (at least past the $200s). I haven't followed the market for a while though so I could be less familiar than yourself.

February 17th, 2015, 04:08 PM
Sigh. Maybe it belonged to Steve Jobs...

February 17th, 2015, 06:50 PM
How often does CP/M-86 come up on ebay?

February 17th, 2015, 07:07 PM
It would seem to me I recently flushed away about $2000 when I discarded a box of early OS 5-1/4s because they might have been moldy. :(

February 17th, 2015, 07:37 PM
Not exactly sure how often they come up for sale.

I bought the same software as far as I can tell, Digital Research CP/M-86 for IBM PC and PC XT
281053775841, not sure how to pull up old auctions but it was around $45.00.

February 18th, 2015, 09:10 AM
they are not many in completed listings.... to find them tick the completed listings box in the left hand column

February 18th, 2015, 09:39 AM
Regarding Completed Listings, I was looking for "Digital Research CP/M" (without the "-86") and didn't see any. I have a manual with no disks but I'm sure this is version would be more abundant. I just don't know the platform because of the lack of disks. Does anyone know what platform the manual is for if there are no disks? I assume this is all the same manual for all but the x86 platform?

February 18th, 2015, 09:59 AM

So how often does the boxed "Programmer's Pak" version of Concurrent CP/M-86 come up for auction? I may be sitting on a goldmine...

February 18th, 2015, 10:39 AM
That's what I was thinking Chuck, I have something I think is worth $45.00 and it is selling on eBay for $450.00.

I was thinking about those CompaticCards and how much they are bringing now.

February 18th, 2015, 10:48 AM
Programming/development tools often seem to sell for quite a bit. Although no idea why this went for so much.

My CDP OEM of CPM-86 1.1 was about $7 with some other stuff. Cheap clones FTW :D

February 18th, 2015, 11:19 AM
Programming/development tools often seem to sell for quite a bit. Although no idea why this went for so much.

My CDP OEM of CPM-86 1.1 was about $7 with some other stuff. Cheap clones FTW :DHell yeah. It's a good way to aquire stuff.

February 18th, 2015, 11:43 AM
Well it only takes two people fighting over something for the prices to get high, and if it doesn't come up very often I'm not surprised by the sale price.

It's quite likely this would've been PC computing if Microsoft hadn't stolen the show (so to speak).
I think this title gains popularity from the whole "CP/M 86 vs DOS" thing. Well at least that's why I'd buy it.

February 18th, 2015, 12:41 PM
Hell yeah. It's a good way to aquire stuff.

I got my CP/M-86 stuff for free at a trade show. Even better, as vendors have hospitality suites. :)

February 18th, 2015, 01:02 PM

Please don't take this wrong because I am as old as you, but did you get it from Gary Kildall when he was still teaching at the Naval School. Was this when he was trying to get Intergalactic Digital Research started.


February 18th, 2015, 03:37 PM
No, I do know people who worked for him at around that time, however--doing documentation. Concurrent CP/M-86 was much later--in the 80s. When Gary was just getting started, the only reason I knew the PG school was because it was a very staunch CDC shop--that and Fleet Numerical in Monterey. It was said that Seymour Cray could announce that he was working on a machine and CDC would have an order for one the next day.

February 18th, 2015, 06:59 PM
While I'm not going to say there's NOBODY out there for whom it would be worth that much, whenever I see things "actually" selling for those types of prices it sets off my bullshit alarm... and yes, those were air quotes Dr. Evil style. "Laser"

I would suspect seller shell game where they are trying to create example sales to drive up the price and their rep -- paying the e-bay fee in hopes of making it up later when prices are artificially inflated. I've seen it a few too many times the past few years, and really this one like a great many others sets my scammy sense tingling.