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Article #118

Re: Origin - CD-only forever!

#118
From: jump... Jumpstile Turner
Date: Mon, 14 Nov 1994 18:30
29 lines
2689 bytes
>|> I thought it would be good to mention that 4x drives 220 ms access times
>160ms 
>|> seek are available for about $450.  The next step should be at lest to 8x 
>|> maybe even 15-20x.  The problem as I see it is going to be access times not 
>|> speed.  Light moves very fast (about 3x10^8 m/s, last i checked) so high data
>|> transfer speeds should be easy to get, but the lenses, receptors and 
>|> lasers that have to move to read the disk are much heavier than the heads 
>|> needed to read a magnetic medium.  There may be a work around for this but I 
>|> haven't seen one yet.
>|> PDeMaio
>|> 

>Access times will go down as rotation speed increases. Quite a lot of the access
>time is made up by rorational latency, that is the average time dhe drive will
>wait after the head has arrived and stabilized until the wanted data appears
>under the head.

  Actually, I would think that the biggest problem with large increases in 
CD-ROM speed would be the CD's themselves.  From what I've read in the CD 
newsgroups, CD's are for the most part slightly warped.  They are only made to 
the specs of what is required to get them to work in today's technology.  
Rotated at very, very high speeds they would be a lot harder to read, making 
the warp (imbalance?) more of a problem, no?
                -Scott

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From: jump...@fortunat.pdial.interpath.net (Jumpstile Turner)
Newsgroups: comp.sys.ibm.pc.games.adventure,comp.sys.ibm.pc.games.action,comp.sys.ibm.pc.games.rpg,comp.sys.ibm.pc.games.flight-sim
Subject: Re: Origin - CD-only forever!
Date: Mon, 14 Nov 1994 18:30:20
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