[net.micro.pc] IBM PC disk drive questions

vax1:bryant (11/29/82)

Does anyone in netland know answers to any of the following  disk
drive questions with respect to the IBM PC:

1) What brand of double sided drive are they going  to  use  with
DOS 1.1?

2) Does the single-sided OS take advantage of the  Tandon's  fast
track  stepping rate?  If they don't, did the previous INT 27 ex-
ample in net.micro.pc adjust the stepping  rate  for  the  faster
speed?   Will  the  double  sided OS take advantage of it if they
stay with Tandon?

3) Will the double sided drives be double track density?

4) Will single sided disks be compatible with the new double sid-
ed OS (will you be able to read your old diskettes)?

5) Has (will) IBM spec in a second-source drive.

6) Specifically, will a Shugart SA450 drive  work  with  the  new
controller board/OS?

Thanks in advance for the help, it could save  a friend  of  mine
some hard earned $$.

Mike Bryant
John Fluke Mfg.
decvax!microsof!fluke!bryant