8" DSDD disk
ajp166 at bellatlantic.net
Sun Jun 5 21:16:26 CDT 2005
>Subject: Re: 8" DSDD disk
> From: "Randy McLaughlin" <cctalk at randy482.com>
> Date: Sun, 05 Jun 2005 18:12:47 -0500
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>From: "Tony Duell" <ard at p850ug1.demon.co.uk>
>Sent: Sunday, June 05, 2005 4:24 PM
>>> I think it's time to get rich quick:
>>> 8" DSDD disk you can buy for $20.00 & $5.00 S&H.
>>> If anyone has an extra $250.00 I can send them 10 and I'll even throw in
>>> plastic carrying case ;-)
>> [LOoks at the rows of 8" disk boxes sitting behind some nice toys in the
>> You know, I could sell off some of those spares and actually afford that
>> darn DPF-reading PC you think I should own....
>Personally I think the basic design of the PC is bad but I've got enough 8"
>disks that if I could get $20 each I could build a newer better shop to work
>on my toys I truly love :-}
>I've always thought computers should be built to maximize performance, IBM
>not only appear to have ignored that but built down. They took a 5mhz brain
>dead version of a 16 bit chip and ran it on an 8 bit bus @ 4.77mhz and put a
>RAM limit of 448mb of RAM. The excuse of running 4.77mhz was for color
>burst but I never saw a video card that didn't use its own crystal negating
>the need for the 4.77mhz. In any case the extra $0.50 it might add to a
>video board versus slowing down a $3000.00 computer doesn't make any sense
>In the 8088/8086 world I like what others did in the S100 world. They
>started with the 8088 simply to keep compatible the 8 bit S100 bus, later a
>16 bit standard allowed for 8086's. The S100 systems generally ran at the
>full chip speed (5 or 8 mhz), allowed full 1mb RAM, didn't use 10% of the
>processor speed to refresh RAM.
Actually a lot of them ran the fastest 8088/6 (12mhz parts) and
had mapping for more than 1meg of ram.
Generally S100 based 16bit systems ran ahead of PCs for overall
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