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Xref: sserve comp.os.386bsd.development:1143 comp.sys.ibm.pc.hardware:65799 Newsgroups: comp.os.386bsd.development,comp.sys.ibm.pc.hardware Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!uunet!pipex!ibmpcug!ibmpcug!jshark!joe From: joe@jshark.inet-uk.co.uk (Joe Sharkey) Subject: Re: ESMD on the PC: A semi-technical review of tommorrow Organization: Individual Network (UK) Date: Wed, 25 Aug 1993 22:28:28 GMT Message-ID: <CCC6FG.A4q@jshark.inet-uk.co.uk> Keywords: ESMD IBM PC HIGH SPEED DATA TRANSFER References: <jmonroyCCAr8u.HBE@netcom.com> Lines: 145 Jesus, you forgot to take the tablets again ;) In article <jmonroyCCAr8u.HBE@netcom.com> jmonroy@netcom.com (Jesus Monroy Jr) writes: > In review of this pamphlet, I see the most interesting > item, something described as a "parallel transfer disk drive". Don't recognise the model, but there *are* some drives that have more than *one* head - is this one? > Interface: ESMD; gee! I remember something like this on my > SUN 2/120 or was it that mainframe I got > $150 for in scrap? The Sun - unless you think something like a VAX/780 to be a mainframe. > Recording code: RLL(1,7); I know this, this is the good > version of MFM. > Average Latency: 8.09ms; hmm.... very interesting. > Position Time: Maximum: 33ms; hmm... wish my floppy could do that. Indeed - average access would be about 20msec. Fast - no? > Well, all a little dull so far... at a capacity of 889MB. It's old - you told us that. > Gee, why are they trying to sell this thing. I've a > SCSI-II that has more capacity and is lighter. Odd? I use old disk drives to help the floor at the bottom of the room. > Wait... what's this? 18MBytes/sec with 6 read/write > channels. Gee,,,, is this a misprint..!?! No. ESMD == 24Mbit/sec = 3Mbyte. With 6 `channels' (heads, I guess) you get a sustained 18Mbyte/sec.... > I better stick to coffee. How could I ever believe > this super, fast, boat anchor at 889 Megabytes, with a built > in heater boasting a data-transfer-rate of 18 MegaBytes > per second could ever amount to anything on a Personal Computer. Sarcasm? Remember when a 5 MByte hard disk was so huge that no-one could ever fill it up? > Good God! Next thing you know I will tell you FDDI, > at 100 Megabits per second, is possible on a PC or Rush Limbaugh > is an intelligent person. I *want* an FDDI (or ATM!) Internet link - it's only 10Mbyte/sec. [[ Is Rush Limbaugh the singer with the group? ]] > Now that I think about it, maybe herbal tea would be > better. Equal proportions of vodka, Southern Comfort and fresh orange juice ;) >Jesus Monroy Jr joe. Newsgroups: comp.os.386bsd.development,comp.sys.ibm.pc.hardware Subject: Re: ESMD on the PC: A semi-technical review of tommorrow Summary: Expires: References: <jmonroyCCAr8u.HBE@netcom.com> Sender: Followup-To: Distribution: Organization: Individual Network (UK) Keywords: ESMD IBM PC HIGH SPEED DATA TRANSFER Jesus, you forgot to take the tablets again ;) In article <jmonroyCCAr8u.HBE@netcom.com> jmonroy@netcom.com (Jesus Monroy Jr) writes: > In review of this pamphlet, I see the most interesting > item, something described as a "parallel transfer disk drive". Don't recognise the model, but there *are* some drives that have more than *one* head - is this one? > Interface: ESMD; gee! I remember something like this on my > SUN 2/120 or was it that mainframe I got > $150 for in scrap? The Sun - unless you think something like a VAX/780 to be a mainframe. > Recording code: RLL(1,7); I know this, this is the good > version of MFM. > Average Latency: 8.09ms; hmm.... very interesting. > Position Time: Maximum: 33ms; hmm... wish my floppy could do that. Indeed - average access would be about 20msec. Fast - no? > Well, all a little dull so far... at a capacity of 889MB. It's old - you told us that. > Gee, why are they trying to sell this thing. I've a > SCSI-II that has more capacity and is lighter. Odd? I use old disk drives to help the floor at the bottom of the room. > Wait... what's this? 18MBytes/sec with 6 read/write > channels. Gee,,,, is this a misprint..!?! No. ESMD == 24Mbit/sec = 3Mbyte. With 6 `channels' (heads, I guess) you get a sustained 18Mbyte/sec.... > I better stick to coffee. How could I ever believe > this super, fast, boat anchor at 889 Megabytes, with a built > in heater boasting a data-transfer-rate of 18 MegaBytes > per second could ever amount to anything on a Personal Computer. Sarcasm? Remember when a 5 MByte hard disk was so huge that no-one could ever fill it up? > Good God! Next thing you know I will tell you FDDI, > at 100 Megabits per second, is possible on a PC or Rush Limbaugh > is an intelligent person. I *want* an FDDI (or ATM!) Internet link - it's only 10Mbyte/sec. [[ Is Rush Limbaugh the singer with the group? ]] > Now that I think about it, maybe herbal tea would be > better. Equal proportions of vodka, Southern Comfort and fresh orange juice ;) >Jesus Monroy Jr joe. -- Joe Sharkey joe@jshark.inet-uk.co.uk ...!uunet!ibmpcug!jshark!joe 150 Hatfield Rd, St Albans, Herts AL1 4JA, UK Got a real domain name (+44) 727 838662 Mail/News Feeds (v32/v32bis): info@inet-uk.co.uk