13 Apr
2012
13 Apr
'12
4:26 p.m.
On 13 Apr 2012 at 14:43, Fred Cisin wrote:
Yes, there were standards.
Standard 6: (National BLC 86/128)
Start in the middle of the disk with the directory on side 1,
decrement the cylinder, alternating sides until cylinder 0. Continue
from cylinder 40, side 0, incrementing the cylinder,
alternating
sides until cylinder 79, side 1.
Standard 7: (Cifer 2684)
Start at the beginning (cylinder 0, side 0), increment alternating
sides, but skew each new cylinder sufficiently to accommodate seek
time and head settling time. Thus, each successive side and cylinder
starts with a different sector.
(those are a couple off the top of my head that you failed to
mention).
--Chuck