Because of this a high density disk which is
theoratically two megabytes comes up as merely 1.44
megabytes. There is a certain amount of material
wasted.
Hmmm? Isn't this because of data redundancy that prevents data loss in
case of trouble? (think stuff like parity control, checksums, etc.)
Because of this a high density disk which is
theoratically two megabytes comes up as merely 1.44
megabytes. There is a certain amount of material
wasted.
Hmmm? Isn't this because of data redundancy that prevents data loss in
case of trouble? (think stuff like parity control, checksums,
Hi All,
I just recently revived my SE/30 by replacing it's analog board and
was wondering what would be some of the best ways I could upgrade the
unit. The system is mostly stock with the exception of a newer HD and
an Asante ethernet card.
I have read about some accelerator cards for the SE/30
Hi all,
Excellent explanation, Peter!
Please let me add on more bit of information: since many concepts from
Apple's MacOS came from Apple II's ProDOS, I'd recommend reading
chapter 3 of the Beneath Apple ProDOS book, available at:
ftp://ftp.a2central.com/pub/documents/beneathprodos.pdf
If you
Peter da Silva wrote:
It's because of sector formatting.
Here's a section of track, full of 1s and 0s:
10101010101010101010101010101010101010101010101010101010101010101010
On the Amiga, they wrote the entire track in one pass, so you only
had to put the inter-sector gap at the end of the track. That gave you
1760K on a 2Mo flippy. You could also drop most of the sector headers
by modifying AmigaDOS and get 1920K in a 2Mo floppy, so long as you
didn't care
Peter da Silva wrote:
On the Amiga, they wrote the entire track in one pass, so you only
had to put the inter-sector gap at the end of the track. That gave you
1760K on a 2Mo flippy. You could also drop most of the sector headers
by modifying AmigaDOS and get 1920K in a 2Mo floppy, so long as you
