11 Feb
1999
11 Feb
'99
2:07 p.m.
True enough I'm sure. MITS also produced a "mini"-floppy controller that
was also a two board TTL set. The first board (computer interface) was the
same board as in the 8" set (except for different RC values), the second
board was completely different. I have the MITS docs for the "mini"-floppy
system and it is documented as a hard sectored using 16 sectors per track.
I also have an Altair Mini-Floppy BASIC disk and it is also hard sectored
with 16 sector holes.
- Doug
-----Original Message-----
No. The original disk for the altair before they became
Pertec Computers
was an 8" system using two boards of TTL. I know I built
three of them in
that era and debugged a few more. All if the later Pertec
machines with
minifloppies had a board that used a 1771 plus a raft of ttl.
I might add the Pertec controller was sold before the Pertec
aquired MITS.
Allison