From: "Brian R. Hanson" <brh@cray.com>
Subject: Re: Rules for Representation of Subtypes
Date: 1996/10/01
Date: 1996-10-01T00:00:00+00:00 [thread overview]
Message-ID: <325179AD.41C6@cray.com> (raw)
In-Reply-To: 1996Oct1.125614.1@eisner
In article <52oi3v$din@mill.gdls.com>, schwarza@gdls.com (Art Schwarz)
writes:
> Nearest that I can remember, byte size varies by machine. It is NOT an
> eight byte quantity. This is probably the motivation to use _octet_
> instead of bytes in formal descriptions.
>
> An example of byte sizes: CDC 1604 6 bits
> CDC 6000 12 bits
> PC 8 bits
> UNIVAC 1100 7, 8, 9, 12 bits
> PDP-10 7 bits (and others?)
On the CDC 6xxx line a "byte" was probably 6 bits - the size needed
to typically represent a character. 12 bits was the size of a parcel
which was the minimum size for an instruction. 12 bits was also the
size of a word of memory in the associated peripheral units used to
do io to and from memory. The smallest addressable unit of storage
for the main processor was 60 bits - the size of a word.
-- Brian Hanson
-- brh@cray.com
next prev parent reply other threads:[~1996-10-01 0:00 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-09-28 0:00 Rules for Representation of Subtypes Robert Dewar
1996-09-29 0:00 ` Robert A Duff
1996-09-29 0:00 ` Robert Dewar
1996-09-30 0:00 ` Art Schwarz
1996-09-30 0:00 ` Robert A Duff
1996-10-01 0:00 ` Larry Kilgallen
1996-10-01 0:00 ` Brian R. Hanson [this message]
1996-10-01 0:00 ` Robert A Duff
1996-09-29 0:00 ` Matthew Heaney
-- strict thread matches above, loose matches on Subject: below --
1996-10-10 0:00 W. Wesley Groleau (Wes)
1996-10-10 0:00 ` Robert Dewar
1996-10-11 0:00 ` Ken Garlington
1996-10-03 0:00 Franco Mazzanti
1996-10-03 0:00 ` Robert A Duff
1996-10-02 0:00 Franco Mazzanti
1996-10-03 0:00 ` Robert A Duff
1996-09-28 0:00 Robert Dewar
1996-09-29 0:00 ` Robert A Duff
1996-09-29 0:00 ` Matthew Heaney
1996-09-28 0:00 Robert Dewar
1996-09-30 0:00 ` Keith Thompson
1996-09-22 0:00 Matthew Heaney
1996-09-23 0:00 ` Robert A Duff
1996-09-24 0:00 ` Matthew Heaney
1996-09-26 0:00 ` Robert A Duff
1996-09-26 0:00 ` Larry Kilgallen
1996-09-27 0:00 ` Robert A Duff
1996-09-27 0:00 ` Mark A Biggar
1996-09-30 0:00 ` Robert A Duff
1996-10-01 0:00 ` Larry Kilgallen
1996-10-01 0:00 ` Robert A Duff
1996-10-01 0:00 ` Samuel Tardieu
1996-10-01 0:00 ` Ken Garlington
1996-09-28 0:00 ` Larry Kilgallen
1996-09-29 0:00 ` Robert A Duff
1996-09-29 0:00 ` Matthew Heaney
1996-09-30 0:00 ` Robert Dewar
1996-09-30 0:00 ` Matthew Heaney
1996-09-30 0:00 ` Robert A Duff
1996-09-29 0:00 ` Larry Kilgallen
1996-09-29 0:00 ` Matthew Heaney
1996-09-30 0:00 ` Robert A Duff
1996-10-01 0:00 ` Ken Garlington
1996-10-02 0:00 ` Robert A Duff
1996-10-02 0:00 ` Ken Garlington
1996-10-06 0:00 ` Robert Dewar
1996-10-03 0:00 ` Robert Dewar
1996-09-27 0:00 ` Matthew Heaney
1996-09-27 0:00 ` Robert A Duff
1996-09-23 0:00 ` David C. Hoos, Sr.
1996-09-23 0:00 ` Samuel T. Harris
1996-09-26 0:00 ` David C. Hoos, Sr.
1996-09-23 0:00 ` Robert A Duff
1996-09-24 0:00 ` Robert Dewar
1996-09-24 0:00 ` Robert Dewar
1996-09-26 0:00 ` Keith Thompson
1996-09-26 0:00 ` Matthew Heaney
1996-09-27 0:00 ` Robert Dewar
1996-09-27 0:00 ` Robert A Duff
1996-09-27 0:00 ` Robert Dewar
1996-09-27 0:00 ` Robert A Duff
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