26 Dec
2010
26 Dec
'10
8:35 p.m.
On 26 Dec 2010 at 16:31, Fred Cisin wrote:
Did anybody besides Epson ever use the 40 cylinder 3.5" in a cmmercial
product?
Sure--a number of low-end word processors, such as Silver-Reed and
Brother used them. I think the Preis CP/M box used them also.
I find it more interesting that some of the 135 tpi users selected
odd values for the upper limit. HP used 66, I think and Jonos used
70. Of course, the Japanese HD application were all mirrors of 8"
usage and tended to be 77 cylinders for that reason.
--Chuck
It's also odd in that it's a 40cylinder (67.5
tpi) device.
its first generation 3.5", also runs slower data rate.