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Groups > alt.folklore.computers > #163349
| From | Charlie Gibbs <cgibbs@kltpzyxm.invalid> |
|---|---|
| Newsgroups | alt.folklore.computers |
| Subject | Re: IBM's 96 column punch card (was System/3)? |
| Date | 2016-05-07 16:47 +0000 |
| Organization | NewsGuy - Unlimited Usenet $23.95 |
| Message-ID | <ngl6790f0n@news7.newsguy.com> (permalink) |
| References | (16 earlier) <ddydnb_ByriZA7bKnZ2dnUU7-U3NnZ2d@giganews.com> <qfNWy.2381$vz2.842@fx23.iad> <PM0005322C18AD4A3F@aca40d35.ipt.aol.com> <722Xy.29347$jT2.1724@fx35.iad> <PM000532405D457743@aca40426.ipt.aol.com> |
On 2016-05-07, jmfbahciv <See.above@aol.com> wrote: > Scott Lurndal wrote: > >> jmfbahciv <See.above@aol.com> writes: >> >>> Scott Lurndal wrote: >>> >>>> I quite enjoyed using our 200IPS GCR drives (rebadged STC, IIRC). >>>> They actually had a higher transfer rate than one of our models >>>> of disk drive, which I found to my consternation when I tested a >>>> double-buffering algorithm that didn't bother to wait for write >>>> completion (under the assumption that disks were always faster >>>> than tape :-). >>> >>> <GRIN> Computers always did that to developers. What did you do >>> to "fix" it? >> >> Waited for the disk write to complete before starting the next >> magtape read into the buffer. > > Would having a buffer ring be too complicated? Probably not, if it was considered necessary. I know that things are different in these days of powerful hardware and bloatware, but at the time few people would write a bunch of code that they figured they could do without. Besides, back then the concept of tapes being faster than disks was a bit of a mind-bender. -- /~\ cgibbs@kltpzyxm.invalid (Charlie Gibbs) \ / I'm really at ac.dekanfrus if you read it the right way. X Top-posted messages will probably be ignored. See RFC1855. / \ HTML will DEFINITELY be ignored. Join the ASCII ribbon campaign!
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Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-04-26 11:42 +0000
Re: IBM's 96 column punch card (was System/3)? Jon Elson <jmelson@wustl.edu> - 2016-04-26 14:36 -0500
Re: IBM's 96 column punch card (was System/3)? Morten Reistad <first@last.name.invalid> - 2016-04-27 00:42 +0200
Re: IBM's 96 column punch card (was System/3)? scott@slp53.sl.home (Scott Lurndal) - 2016-04-27 13:48 +0000
Re: IBM's 96 column punch card (was System/3)? Morten Reistad <first@last.name.invalid> - 2016-04-28 08:41 +0200
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-04-27 12:40 +0000
Re: IBM's 96 column punch card (was System/3)? Andy Burns <feb2017-usenet@adslpipe.co.uk> - 2016-04-27 14:51 +0100
Re: IBM's 96 column punch card (was System/3)? Jon Elson <elson@pico-systems.com> - 2016-04-27 22:27 -0500
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-04-28 12:06 +0000
Re: IBM's 96 column punch card (was System/3)? Quadibloc <jsavard@ecn.ab.ca> - 2016-04-28 07:49 -0700
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-28 17:03 +0000
Re: IBM's 96 column punch card (was System/3)? "Osmium" <r124c4u102@comcast.net> - 2016-04-28 12:18 -0500
Re: IBM's 96 column punch card (was System/3)? Anne & Lynn Wheeler <lynn@garlic.com> - 2016-04-28 11:19 -0700
Re: IBM's 96 column punch card (was System/3)? hancock4@bbs.cpcn.com - 2016-04-28 14:19 -0700
Re: IBM's 96 column punch card (was System/3)? "Charles Richmond" <numerist@aquaporin4.com> - 2016-04-29 16:47 -0500
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-04-29 12:18 +0000
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-04-28 17:03 +0000
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-04-29 12:18 +0000
Re: IBM's 96 column punch card (was System/3)? Morten Reistad <first@last.name.invalid> - 2016-04-29 15:14 +0200
Re: IBM's 96 column punch card (was System/3)? pechter@pechter.net (William Pechter) - 2016-05-03 14:09 +0000
Re: IBM's 96 column punch card (was System/3)? Jon Elson <elson@pico-systems.com> - 2016-04-27 22:19 -0500
Re: IBM's 96 column punch card (was System/3)? pechter@pechter.net (William Pechter) - 2016-05-03 14:21 +0000
Re: IBM's 96 column punch card (was System/3)? pechter@pechter.net (William Pechter) - 2016-05-03 14:03 +0000
Re: IBM's 96 column punch card (was System/3)? Jon Elson <jmelson@wustl.edu> - 2016-05-03 13:58 -0500
Re: IBM's 96 column punch card (was System/3)? Jon Elson <jmelson@wustl.edu> - 2016-05-03 14:22 -0500
Re: IBM's 96 column punch card (was System/3)? pechter@pechter.net (William Pechter) - 2016-05-04 20:21 +0000
tape drives [was Re: IBM's 96 column punch card (was System/3)?] Rich Alderson <news@alderson.users.panix.com> - 2016-05-03 15:39 -0400
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-05-04 13:02 +0000
Re: IBM's 96 column punch card (was System/3)? Jon Elson <elson@pico-systems.com> - 2016-05-04 11:45 -0500
Re: IBM's 96 column punch card (was System/3)? Morten Reistad <first@last.name.invalid> - 2016-05-05 01:13 +0200
Re: IBM's 96 column punch card (was System/3)? Jon Elson <jmelson@wustl.edu> - 2016-05-05 14:25 -0500
Re: IBM's 96 column punch card (was System/3)? scott@slp53.sl.home (Scott Lurndal) - 2016-05-05 19:34 +0000
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-05-06 13:28 +0000
Re: IBM's 96 column punch card (was System/3)? scott@slp53.sl.home (Scott Lurndal) - 2016-05-06 14:39 +0000
Re: IBM's 96 column punch card (was System/3)? scott@slp53.sl.home (Scott Lurndal) - 2016-05-06 14:41 +0000
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-05-07 13:14 +0000
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-05-07 16:47 +0000
Re: IBM's 96 column punch card (was System/3)? Andrew Swallow <am.swallow@btopenworld.com> - 2016-05-07 23:30 +0100
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-05-08 13:08 +0000
Re: IBM's 96 column punch card (was System/3)? Jon Elson <elson@pico-systems.com> - 2016-05-07 16:07 -0500
Re: IBM's 96 column punch card (was System/3)? scott@slp53.sl.home (Scott Lurndal) - 2016-05-07 21:23 +0000
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-05-08 13:08 +0000
Re: IBM's 96 column punch card (was System/3)? scott@slp53.sl.home (Scott Lurndal) - 2016-05-09 15:13 +0000
Re: IBM's 96 column punch card (was System/3)? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2016-05-09 17:05 +0000
Re: IBM's 96 column punch card (was System/3)? pechter@pechter.net (William Pechter) - 2016-05-09 22:41 +0000
Re: IBM's 96 column punch card (was System/3)? Morten Reistad <first@last.name.invalid> - 2016-05-10 12:01 +0200
Re: IBM's 96 column punch card (was System/3)? Peter Flass <peter_flass@yahoo.com> - 2016-05-10 06:42 -0400
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-05-10 12:34 +0000
Re: IBM's 96 column punch card (was System/3)? scott@slp53.sl.home (Scott Lurndal) - 2016-05-10 13:05 +0000
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-05-11 12:18 +0000
Re: IBM's 96 column punch card (was System/3)? scott@slp53.sl.home (Scott Lurndal) - 2016-05-11 13:27 +0000
Re: IBM's 96 column punch card (was System/3)? Morten Reistad <first@last.name.invalid> - 2016-05-10 15:53 +0200
Re: IBM's 96 column punch card (was System/3)? jmfbahciv <See.above@aol.com> - 2016-05-11 12:18 +0000
Re: IBM's 96 column punch card (was System/3)? "Simo" <dhy287@gmail.com> - 2016-05-10 04:56 +1000
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