3 Mar
2011
3 Mar
'11
7:19 p.m.
On Thu, Mar 3, 2011 at 9:38 PM, Chuck Guzis <cclist at sydex.com> wrote:
On 2 Mar 2011 at 18:45, les at frii.com wrote:
CBM disks did that (one of the 65xx processors could affect the
low-order two bits of a divide-by-N chip), and so did 400K Mac floppy
drives (you could hear the motor speed changing).
Given Tony's comment about the drive portion of the Victor 9000
resembling a CBM 8050 drive, I'm not surprised to hear about the
"zoning". The issue for imaging becomes where are the zones and what
are the bitrates for each zone, etc.
-ethan
The Victor 9000 had a variable spindle speed...
One of the PC mags covered the disk operation back when. ?The drive
spins more slowly when the head is on the outside tracks (i.e. CLV,
but ISTR that it isn't "constant", but rather zoned).