9 Sep
2012
9 Sep
'12
1:14 p.m.
On Sun, 9 Sep 2012, Alexey Toptygin wrote:
So, what drives actually need to be 'parked'?
My understanding was that if
you de-energize the spindle motor and the voice coil that positions the
heads and the same time, the heads will have plenty of time to retract and
lock before the platters slow down enough for the heads to land. Was it
only needed on drives that used stepper motors for head positioning?
Either way, in what technology generation and/or time frame did the
requirement go away?
XT drives generally had stepper motors, and VERY few had a "self park"
feature as you describe. Yes, I know that you CAN put some IDE drives on
a controller on a 5160, and you could probably build a USB interface, or
even ATA. I'm talking about 506/412 interfaced MFM drives as existed in
the days of MS-DOS 2.00, and many of which were still around up until
Win95