Date: Mon, 20 Sep 1999 10:15:45 +0930 From: Greg Lehey <grog@lemis.com> To: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net> Cc: Poul-Henning Kamp <phk@critter.freebsd.dk>, "Brian F. Feldman" <green@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/usr.bin/systat vmstat.c Message-ID: <19990920101545.U55065@freebie.lemis.com> In-Reply-To: <199909191846.LAA55776@gndrsh.dnsmgr.net>; from Rodney W. Grimes on Sun, Sep 19, 1999 at 11:46:17AM -0700 References: <17289.937766500@critter.freebsd.dk> <199909191846.LAA55776@gndrsh.dnsmgr.net>
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On Sunday, 19 September 1999 at 11:46:17 -0700, Rodney W. Grimes wrote:
>> In message <199909191837.LAA55732@gndrsh.dnsmgr.net>, "Rodney W. Grimes" writes
>> :
>>
>>>> Or as IBM did many years ago "rotating platter mass storage device" :-)
>>>
>>> I thought there international work for Disc was ``Direct Access Storage
>>> Device'' abbreviated as ``DASD'', pronounced as in DazzDee :-).
>>
>> I don't think that got used over here around '90 or so. There were
>> also various conflicing terminologies, mostly one per on product line
>> (series/1 vs 3x vs 3[67]0 etc etc).
>
> DASD was post 370 terminology, started about the time of the 3082/84
> series so 1990 would be about right for when IBM started to use it.
I have here a book entitled "IBM 360 Assembler Language Programming",
published by Wiley in 1970. On page 409, at the beginning of the
chapter entitled "Direct Access Storage Devices (DASD)", I read
DASDs available for System 360 are listed below.
1. Drive with removable disk packs: 2311 and 2314.
2. Drive with non-removable disk packs: 2302.
3. Drum: 2301 and 2303.
4. Data Cell drive: 2321.
There's very little mention of the word disk in the chapter (and none
of the alternative "disc"). I don't think that the term was new at
the time the book was written.
Greg
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