10 Feb
1999
10 Feb
'99
6:18 p.m.
Not true!
Altair Mini-Disk BASIC was distributed on 5 1/4" hard-sectored disks with 16
sectors (not 10). The MITS controller consisted of two S-100 cards that was
mostly TTL (nothing fancy like a 1771).
- Doug
-----Original Message-----
From: allisonp(a)world.std.com [mailto:allisonp@world.std.com]
Sent: Wednesday, February 10, 1999 7:22 PM
To: Discussion re-collecting of classic computers
Subject: Re: E-Over Pay strikes again! original Altair disk sells for
< Just remember that they're hard sectored disks with 10
sectors. I just
<found a box of them in a surplus store a couple of days ago.
Apple or PCC/altair minifloppy? if yes then wrong. They
were both soft
sectored. It was the 8" altair disks that were hard sectored
and it was 26 sectors if memory hasn't lost a bit. Somewhere in the
junkbox is a Pertec minifloppy controller for s100 that how I know,
it's 1771 based.
10 sector was most commonly Northstar* MDS.
Allison
11 Feb
11 Feb
4:22 a.m.
Ok so Sam will have to punch a few more holes.
My Altair has the NorthStar controller. It's one card of TTL chips and
uses a 5 1/4" drive. I'm fairly sure it uses 10 sector disks (same as the
North Stars) but I don't it working yet so I'm not positive about the
number of sectors.
BTW I found a box of 10 sectored disks. Some of the are labeled
"MASCOM". Does anybody know what MASCOM is?
Joe
At 09:18 PM 2/10/99 -0800, you wrote:
Not true!
Altair Mini-Disk BASIC was distributed on 5 1/4" hard-sectored disks with 16
sectors (not 10). The MITS controller consisted of two S-100 cards that was
mostly TTL (nothing fancy like a 1771).
- Doug
-----Original Message-----
From: allisonp(a)world.std.com [mailto:allisonp@world.std.com]
Sent: Wednesday, February 10, 1999 7:22 PM
To: Discussion re-collecting of classic computers
Subject: Re: E-Over Pay strikes again! original Altair disk sells for
< Just remember that they're hard sectored disks with 10
sectors. I just
<found a box of them in a surplus store a couple of days ago.
Apple or PCC/altair minifloppy? if yes then wrong. They
were both soft
sectored. It was the 8" altair disks that were hard sectored
and it was 26 sectors if memory hasn't lost a bit. Somewhere in the
junkbox is a Pertec minifloppy controller for s100 that how I know,
it's 1771 based.
10 sector was most commonly Northstar* MDS.
Allison
3:21 a.m.
My Altair has the NorthStar controller. It's one
card of TTL chips and
uses a 5 1/4" drive. I'm fairly sure it uses 10 sector disks (same as the
North Stars) but I don't it working yet so I'm not positive about the
number of sectors.
It's likely the same as the controller was used in a lot of systems. It
was the first disk upgrade to my altair prior to retiring it. Typically
if the drive box was bought from NS* the box would be the same blue as
altair.
Allison
9288
days inactive
9289
days old
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