2026-07-06 21:45 UTC
Replies (9)
-
@aholtzma@mstdn.ca 2026-07-06 22:29
@nikitonsky@mastodon.online magnetic storage sits in the weird space between communications bandwidth (mega is 1000^2) and memory (mega is 1024^2)
-
@gklka@mastodon.social 2026-07-06 21:47
@nikitonsky@mastodon.online Also their true size was around 2.0 MB, the filesystem on them required a lot of space too
-
@d1@autistics.life 2026-07-06 22:07
@nikitonsky@mastodon.online it's atrocious
-
@Yankovic123@norcal.social 2026-07-06 22:11
@nikitonsky@mastodon.online don’t even get me started on how to calculate bytes factorial…
-
@mene@mastodon.social 2026-07-06 22:20
@nikitonsky@mastodon.online yes, it's odd, but it's a small price to pay for a nice round number like 1.44.
-
@jfmezei@cosocial.ca 2026-07-06 22:39
@nikitonsky@mastodon.online There weren't *really* floppy disks since there were in a hard plastic case. The 5" and earlier 8" floppies were truly floppy. It might have made more sense to call then 288 mega sectors (288,000000 * 512 bytes). The 3.5" started at 360kB, then 720kB (double sided). First Mac had 400kB 3.5" and MacPlus first came with 800 kB double sided, and eventually 1.44 high density double sided. A second hole on disk enclosure denoted high density (first was for write protect)
-
@benke@social.linux.pizza 2026-07-07 10:36
@nikitonsky@mastodon.online looks like 1440 kilobytes
-
@wegegeld@toot.berlin 2026-07-07 01:19
@nblr@chaos.social that was just the stupid Intel-PCs. The Amiga-Disk had 880 KB in SD flavour and 1.76 MB as HD (high densidy)
-
@argv_minus_one@mastodon.sdf.org 2026-07-07 01:46
@nblr@chaos.social See also Extended Density Format https://en.wikipedia.org/wiki/IBM_Extended_Density_Format which stores 1860kiB on a 3½ floppy. In this format, sectors aren't all the same size. Wild. See also the general concept of superformatting. https://en.wikipedia.org/wiki/Superformatting @nikitonsky@mastodon.online