30 Dec
1999
30 Dec
'99
7:27 a.m.
I've seen occasional mention of the quantum 540 HDD on the list. Has
anybody got the cylinder and head count available?
thanx
Dick
30 Dec
30 Dec
7:36 a.m.
On Thu, 30 Dec 1999, Richard Erlacher wrote:
I've seen occasional mention of the quantum 540
HDD on the list. Has
anybody got the cylinder and head count available?
WHICH "Quantum 540 HDD"?
Quantum made a "Q-540" which was a 5.25"HH MFM with 8 heads, 512 cylinders
(about 35MB).
But some of the other Quantum lines, such as "ProDrive" or "GoDrive",
all
of the digits are capacity, and would therefore be a 540MB.
--
Fred Cisin cisin(a)xenosoft.com
XenoSoft http://www.xenosoft.com
2210 Sixth St. (510) 644-9366
Berkeley, CA 94710-2219
8:22 a.m.
New subject: how many heads, Cylinders on a Quantum 540?
Found this:
Model Interface Capacity Cylinders Heads Sectors
Q540 MFM 36MB 512 8 17
9:52 a.m.
Dick,
If you mean a Q540, then Spininfo says 8 heads, 512 cylinders, RWC = WPC
= 256, FH 5 1/4", 36 Mb, MFM.
Joe
At 02:27 PM 12/30/99 -0700, you wrote:
I've seen occasional mention of the quantum 540 HDD
on the list. Has
anybody got the cylinder and head count available?
thanx
Dick
8:46 a.m.
New subject: How many bytes are there in a MegaByte? (was: OT: how many heads, Cylinders on a Quantum 540?
Three people (I was one) posted the specs of the Q-540, which may or may
not be the 540 that Richard asked about. The Quantum GoDrive540, and
Quantum ProDrive540 are DIFFERENT specs entirely with more than 10 times
the capacity.
If you mean a Q540, then Spininfo says 8 heads, 512
cylinders, RWC = WPC
= 256, FH 5 1/4", 36 Mb, MFM.
Model Interface Capacity Cylinders Heads Sectors
Q540 MFM 36MB 512 8 17
BOTH of the references quoted call that "36MB".
Simple arithmetic:
8 * 512 * 17 * 512 gives 35,651,584
IF a megabyte is 1048576, then that is exactly 34 megabytes.
EVERYBODY here is capable of doing that multiplication.
Are we going to completely give in to the SLEAZE and redefine meg as
1,000,000, and K as 1,000?
Q: If IBM ran a donut shop, how many donuts would there be in a dozen?
--
Grumpy Ol' Fred cisin(a)xenosoft.com
12:09 p.m.
New subject: how many heads, Cylinders on a Quantum 540?
Can you give a model name or number I show several 540 hd in my book ?
----- Original Message -----
From: Richard Erlacher <edick(a)idcomm.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Sent: Thursday, December 30, 1999 3:27 PM
Subject: OT: how many heads, Cylinders on a Quantum 540?
I've seen occasional mention of the quantum 540
HDD on the list. Has
anybody got the cylinder and head count available?
thanx
Dick
8908
days inactive
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days old
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