CP/M

From: Allison J Parent <allisonp_at_world.std.com>
Date: Tue Jun 16 23:01:10 1998

<> Apple is weird with their formats, nearly hardsector. C-128 has a few
<
<Actually, Apple was the _ultimate_ soft-sector, as it didn't pay any
<attention to sector detect at all -- it had to read the whole track
<then figure out where it started. It's a major reason why database
<applications were never a big thing on Apples until hard disks showed
<up -- updating things by record was only possible by writing whole
<tracks.

My comment was that apple format is not unlike hardsector in that it's
not readable with most softsectored controllers. For all intents it
was not unlike the usually vendor unique hard sector formats.

Also DBASEII ran well on apples with floppies. The only penelty of
reading an entire track was memory space. The payback was speed as
there was an implied track level caching.

Allison
Received on Tue Jun 16 1998 - 23:01:10 BST

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