Article View: comp.sys.next.misc
Article #4848Re: Speed of next CD?
From: Michael Gersten
Date: Tue, 26 Jan 1993 17:36
Date: Tue, 26 Jan 1993 17:36
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1289 bytes
In article <1993Jan10.180508.369@stb.info.com>, I wrote: >Does anyone know what the speed of the next CD rom drive is? >Both seek time and throughput bytes/sec? > >Please reply by mail, and I'll summarize. Ok, here's the summary, as promised: Data transfer rate: Sustained: 150 KB/Sec Burst: 1200 KB/Sec Access time: Full stroke: 0.7 sec (typical) Avg (1/3 stroke): 0.45 sec (typical) Now, 44K samples per second, at 2 bytes per sample, two channels is 88 + 88 = 176 KB/Sec; 176/150 is about 2338/2048 (audio CD vs data CD block size), so this is exactly as fast as needed for audio, no faster. -- Michael Gersten michael@stb.info.com NeXT Registered Developer (NeRD) # 3860 -- Hire me! Quick! Will program computers for food (and net connection, health benefits, cash,...)
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Path: arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!pacbell.com!decwrl!olivea!spool.mu.edu!howland.reston.ans.net!usc!elroy.jpl.nasa.gov!news.claremont.edu!ucivax!ucla-cs!netcon!bongo!denwa!stb!michael From: michael@stb.info.com (Michael Gersten) Newsgroups: comp.sys.next.misc Subject: Re: Speed of next CD? Message-ID: <1993Jan26.173611.2309@stb.info.com> Date: 26 Jan 93 17:36:11 GMT References: <1993Jan10.180508.369@stb.info.com> Organization: STB BBS, La, Ca, 310 397 3137 Lines: 23