this post was submitted on 07 Nov 2025
464 points (99.8% liked)

unix like operating system lovers

2370 readers
1 users here now

This is a community that is only for nerds jk. everyone who doesn't scare when seeing UNIX terminal welcome! rules:

  1. don't make comments that branch out from the main topic too much, at least please somehow relate to it.
  2. retro operating systems, e.g. discussion about them, is strictly forbidden, please make a retro community instead.
  3. please be nice for others.

founded 2 years ago
MODERATORS
pax@sh.itjust.works
pax@rblind.com
464
Tape containing UNIX v4 from Bell Labs (c. 1973) found in a storage room at the University of Utah – potentially the only complete copy (discuss.systems)
submitted 1 week ago* (last edited 1 week ago) by Novocirab@feddit.org to c/unix@sh.itjust.works
46 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] reallyzen@lemmy.ml 14 points 1 week ago* (last edited 1 week ago) (1 children)

What does "700 GP 3200 FCI" means ? One should be the length of the tape I guess.

[–] Cort@lemmy.world 35 points 1 week ago* (last edited 1 week ago) (2 children)

3200 fci is flux changes per inch, so basically the number of bits per inch of tape.

700GP is the style of tape. 1/2 inch, 9-tracks.

The length of the tape depends on the size/diameter of the reel it's on. Going by the markings on the left it's about 1000ft of tape.

[–] Ersatz86@lemmy.world 4 points 1 week ago

Well done

[–] ralakus@lemmy.world 1 points 1 week ago* (last edited 1 week ago)

Using those measurements, that's about 38.4MB of storage on that tape