TRS-DOS as possible prior art for MS patent on exFAT, and Reference request

On 18 Sep 2012 at 8:23, David Riley wrote: I thought about finding old mainframe code using the hash scheme and the problem dawned on me that there may be "user" manuals that give functional advice on use, but internals manuals were very rare outside of groups that actually did the code maintenance. In particular, I remember the Zodiac IMS (Internal Maintenance Specification) for a project that I worked on was easily 7 inches thick and described every table and routine in the OS. Similar ones were put out for the data management system and communications system. And who remembers Zodiac, much less has working code for it? There was a guy looking for information (back in the 70s, UBS tried to deploy it) in 2006. I didn't run across his message until 2012 and responded, but by then he'd already published his paper. But I could have told him tons about it, had I known he was looking--but it would all have been from memory. Any printed documentation is probably long, long gone. We didn't have bitsavers 40 years ago... --Chuck