ben franchuk wrote:
  vance(a)neurotica.com wrote:
  IBM definitely shipped a 5MB.  Never heard of a
2MB. 
 2.5 meg sounds more reasinable for early HD's even if not
 used in IBM's. 
I have never heard of a 2.5 MB HD for anything on the PC or S-100 era
systems. On the other hand, my Northstar Horizon (~1979 or so) has a 5
MB HD installed on it. I don't remember exactly, but I believe the
Vector 4 also had a 5 MB HD.