Re: How many K does a ProDOS Apple IIe of IIc floppy hold?

[nathan@visi.com (Nathan Mates)]

In article <zeno-0806981801520001@pm56-38.magicnet.net>,
 <zeno@magicnet.net> wrote:
>I had a IIc many years ago, and I ned to know its floppy disk capacity. I
>think it was around 100K or around that, but would like a more exact
>figure. Thanks.

   Maximal capacity is 140K (35 tracks * 4K/track). DOS 3.3 lost 16K
to OS and reserved space (~8K if OS removed) For a ProDOS formatted
disk, subtract about 3.5-4K of overhead (volume bitmap, directories)
for a 5.25" floppy. ProDOS disk space usage increased if you made it
bootable-- the OS was a file to be loaded, instead of forcibly
reserving off tracks.

   Some user hacks could increase disk space slightly by having the
drive try to read more tracks than was officially supported, but that
is not really recommended for maximum compatability.

Nathan Mates
--
<*> Nathan Mates http://www.visi.com/~nathan/      <*>
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# think-- what are the facts, and to how many decimal places? -R.A. Heinlein