Looking for IBM PC/XT/AT technical references

[Tony Duell]

> I only say that because I've seen single-sided TM-100s (TM-100-1A) in
> CP/M machines.  They should work with an  IBM 5150 PC, but, naturally,
> only as single-sided drives, at a nominal 180K under DOS 2.1 and newer
> (9 sectors per track vs 8 sector "160K" disks in the earliest
> examples).

Presumably there were single-sided TM-100s with the IBM logo on the 
faceplate (IIRC the original PC drive _was_ 160K/180K -- i.e. 
single-sided). I asusme somebody has managed to rescue one...

-tony