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Cyhist Apr. 10 1998 E
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========================================================================= Date: Fri, 10 Apr 1998 16:50:02 -0400
Reply-To: kreid-green@ets.org
Sender: "CYHIST Community Memory: Discussion list on the History of
Cyberspace" <CYHIST@MAELSTROM.STJOHNS.EDU> From: keith reid-green <kreid-green@ETS.ORG>
Subject: fwd: Re: [CM>] FOO on you!!
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Community Memory: Discussion List on the History of Cyberspace ______________________________________________________________________
The first 8-bit byte machine I worked on was the IBM 7740. Oddly, it didn't use hex but used a quasi-octal in which a dump showed a byte as 3-3-2, that is, two octal digits and a base-4 digit. Since the base-4 digit was on the low end, the number was hard to convert.
Keith
---------------------------
Keith S. Reid-Green The human race is faced
Educational Testing Service with a cruel choice--
Princeton, NJ 08541 work or daytime TV
KReid-Green@ets.org
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Original Text
From: "Julian Thomas" <jt@EPIX.NET>, on 4/10/98 3:21 PM: To: SMTP@PTS01@Servers[<CYHIST@MAELSTROM.STJOHNS.EDU>]
______________________________________________________________________
Community Memory: Discussion List on the History of Cyberspace ______________________________________________________________________
In <2.2.32.19980410162448.0068317c@arbhome1.beasys.com>, on 04/10/98
at 09:24 AM, Stan Mazor <stan.mazor@BEASYS.COM> typed:
>I invite comments on the use of FOO or prior to 360 usage of hexadecimal.
Hex was used on quite a few machines before 360. I remember specifically the Datamatic (later Honeywell) machines - D1000 and H800. These machines used 0-9,B-G rather than A-F - saved a number of circuits in the input decoders.
A few of us were "lucky" enough to have to unlearn B-G and change to A-F.
Anyone who knows BB00FFFFEEEE will understand!
There was also a machine (I think a one-of-a-kind) that used UVWXYZ.
--
Julian & Mary Jane Thomas
jt@epix.net http://www.epix.net/~jt
In the beautiful Finger Lakes Wine Country of New York State! -------------------------------------------------- "The one I kiss will be your man." - Judas Iscariot, 33 A.D. "I am loyal to the United States." - Benedict Arnold, 1776 "OS/2 will be the platform of the 90's." - Bill Gates, 1989
______________________________________________________________________
Reply-To: kreid-green@ets.org
Sender: "CYHIST Community Memory: Discussion list on the History of
Cyberspace" <CYHIST@MAELSTROM.STJOHNS.EDU> From: keith reid-green <kreid-green@ETS.ORG>
Subject: fwd: Re: [CM>] FOO on you!!
MIME-version: 1.0
Content-type: text/plain; charset=us-ascii
______________________________________________________________________
Community Memory: Discussion List on the History of Cyberspace ______________________________________________________________________
The first 8-bit byte machine I worked on was the IBM 7740. Oddly, it didn't use hex but used a quasi-octal in which a dump showed a byte as 3-3-2, that is, two octal digits and a base-4 digit. Since the base-4 digit was on the low end, the number was hard to convert.
Keith
---------------------------
Keith S. Reid-Green The human race is faced
Educational Testing Service with a cruel choice--
Princeton, NJ 08541 work or daytime TV
KReid-Green@ets.org
-------------
Original Text
From: "Julian Thomas" <jt@EPIX.NET>, on 4/10/98 3:21 PM: To: SMTP@PTS01@Servers[<CYHIST@MAELSTROM.STJOHNS.EDU>]
______________________________________________________________________
Community Memory: Discussion List on the History of Cyberspace ______________________________________________________________________
In <2.2.32.19980410162448.0068317c@arbhome1.beasys.com>, on 04/10/98
at 09:24 AM, Stan Mazor <stan.mazor@BEASYS.COM> typed:
>I invite comments on the use of FOO or prior to 360 usage of hexadecimal.
Hex was used on quite a few machines before 360. I remember specifically the Datamatic (later Honeywell) machines - D1000 and H800. These machines used 0-9,B-G rather than A-F - saved a number of circuits in the input decoders.
A few of us were "lucky" enough to have to unlearn B-G and change to A-F.
Anyone who knows BB00FFFFEEEE will understand!
There was also a machine (I think a one-of-a-kind) that used UVWXYZ.
--
Julian & Mary Jane Thomas
jt@epix.net http://www.epix.net/~jt
In the beautiful Finger Lakes Wine Country of New York State! -------------------------------------------------- "The one I kiss will be your man." - Judas Iscariot, 33 A.D. "I am loyal to the United States." - Benedict Arnold, 1776 "OS/2 will be the platform of the 90's." - Bill Gates, 1989
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