Lisa Source Code

[Chuck Guzis]

On 4/8/21 8:40 AM, Eric Smith wrote:
> On Thu, Apr 8, 2021, 09:34 Chuck Guzis <cclist at sydex.com
> <mailto:cclist at sydex.com>> wrote:
> 
>     There's a big difference--in a WORM, unwritten sectors *mean* something.
> 
> 
> For archival purposes, in what way does an unwritten sector on a WORM
> mean more than an unwritten sector (with no data field present) of a
> floppy? Neither can be accurately archived without representing the fact
> that it is unwritten.

Simple--a WORM contains the entire history of information on the disc;
nothing is ever lost.  A floppy can have data overwritten--and probably
does (e.g. directories and allocation maps)  The only way to update a
WORM is to add to it.

--Chuck