If the information is stored at some value of bits per cm... There's less bitrate (bits per revolution) in the middle of the record vs the outer edges.

A Frank Zappa and the mothers of invention vinyl playing on a record player, with a blue chicken dog toy in the background.
you are viewing a single comment's thread
view the rest of the comments
[–] 13 points 10 months ago (3 children)

Which is why Macintosh floppy disk drives were changing their rotational speed depending on which cylinders were being accessed, so that the information density would in fact be uniform.

Which is why a Mac floppy could hold 400/800k compared to a DOS floppy's 360/720k.

  • source
  • hideshow 3 child comments
  • [–] 5 points 10 months ago (2 children)

    That's a lot of complexity added for 80kb. Curious if there was much software that just wouldn't have fit on a single floppy otherwise.

  • source
  • parent
  • hideshow 2 child comments
  • [–] 6 points 10 months ago (1 child)

    It's an 11% increase, that's huge. Floppies weren't just used to store programs, also to store files.

  • source
  • parent
  • hideshow 1 child comment
  • [–] 1 point 10 months ago

    Some of the first real home/office PCs had only one floppy drive and 640kb of RAM. Fancier machines had a second floppy. If you were a millionaire, you could get a HDD with upwards of 30Mb storage.

  • source
  • parent