RetroBBS - alt.sys.pdp10 - Re: How I Couldn’t Stop Poking at Mysterious CompuServe Server Hard Disk Images

Re: How I Couldn’t Stop Poking at Mysterious CompuServe Server Hard Disk Images

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Subject: Re:_How_I_Couldn’t_Stop_Poking_at_Mysterious_Compu
Serve_Server_Hard_Disk_Images
From: jeffgunter@usa.net (whis292)
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by: whis292 - Wed, 27 Dec 2023 04:25 UTC

On Wednesday, April 3, 2019 at 10:59:48 PM UTC-4, Jim Carpenter wrote:
> On 2019-04-04, fishtoprecords wrote:
> > One tiny nit, in the 80s and perhaps into the mid-90s, there was no
> > trailing E on the name, it was CompuServ.
> It had been called Compuserve since 1977. All of the Compuserve material
> I've been able to collect, I think some going back to the late '70s, has
> the E on the end. I checked with the USPTO and they have it listed as
> first being used on May 3, 1977. (The filing date was April 23, 1979 and
> registration was September 1, 1981, #1167803)
>
> Jim
i've poked at those disc images every once in a while, and never been able to recover the data from them without problems. they're 584 byte blocks "frames" , but it appears to me that some "frames" are misaligned, and that some are missing. since the frame includes a relative sequence number you can actually find frames that are actually missing. after some cruft, the new frame in new alignment has a sequence number that shows that one or sometimes more frames are missing altogether.

has anyone succesfully used these exact images ? am i confused about the files, and everything really is there? are there intact images somewhere?

-jfg

p.s.: i'm about to hit POST and it looks to me like i may be posting in the wrong place. my apologies.

Subject	Author
Re: How I Couldn’t Stop Poking at Mysterious Compu	whis292

Men love to wonder, and that is the seed of science.

computers / alt.sys.pdp10 / Re: How I Couldn’t Stop Poking at Mysterious CompuServe Server Hard Disk Images