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Re: On Binary Digits

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On Wed, 02 Apr 2025 16:45:38 +0000, Aharon Robbins wrote:

> In article <vsjp4s$29slh$1@dont-email.me>,
> Ben Collver  <bencollver@tilde.pink> wrote:
>>On 2025-04-01, Richmond <dnomhcir@gmx.com> wrote:
>>> Ben Collver <bencollver@tilde.pink> writes:
>>>
>>>> To cope with this problem some workers have devised their own
>>>> conventions of writing and pronouncing such numbers. A system in use
>>>> at the Bell Telephone Laboratories would set off the above figure in
>>>> groups of three digits:
>>>>
>>>>     11,110,101,000
>>>>
>>>> and would then pronounce each group of three (or less) separately as
>>>> its decimal equivalent. The first binary group, 11, is the equivalent
>>>> of the decimal 3; the second, 110, of the decimal 6; the third, 101,
>>>> of the decimal 5. (000 is zero in any notation.) The above would then
>>>> be read, "Three, six, five, zero."
>>>
>>> This is called Octal, is it not.
>>
>>Yes this is called Octal.  I only recall using octal in two places:
>>C escape sequences (\033) and Unix file mode bits (755), both
>>coincidentally from Bell.
> 
> Octal was used heavily on the PDP-11, if you used the assembler.

In fact, all of the PDPs. They only went to hex with the VAX.



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On Binary Digits Ben Collver <bencollver@tilde.pink> - 2025-04-01 15:58 +0000
  Re: On Binary Digits Richmond <dnomhcir@gmx.com> - 2025-04-01 17:35 +0100
    Re: On Binary Digits Ben Collver <bencollver@tilde.pink> - 2025-04-02 16:37 +0000
      Re: On Binary Digits arnold@skeeve.com (Aharon Robbins) - 2025-04-02 16:45 +0000
        Re: On Binary Digits Bob Eager <news0009@eager.cx> - 2025-04-02 20:40 +0000
        Re: On Binary Digits Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-04-04 19:03 +0000
          Re: On Binary Digits anthk <anthk@openbsd.home> - 2025-05-12 06:24 +0000
            Re: On Binary Digits Richmond <dnomhcir@gmx.com> - 2025-05-12 19:56 +0100
      Re: On Binary Digits Bob Eager <news0009@eager.cx> - 2025-04-02 20:41 +0000
        Re: On Binary Digits Anton Shepelev <anton.txt@g{oogle}mail.com> - 2025-04-03 12:08 +0300
  Re: On Binary Digits Lawrence D'Oliveiro <ldo@nz.invalid> - 2025-04-01 22:31 +0000
  Re: On Binary Digits vallor <vallor@cultnix.org> - 2025-04-03 02:05 +0000
    Re: On Binary Digits snipeco.2@gmail.com (Sn!pe) - 2025-04-03 09:32 +0100
      Re: On Binary Digits kludge@panix.com (Scott Dorsey) - 2025-04-03 17:33 -0400
      Re: On Binary Digits vallor <vallor@cultnix.org> - 2025-04-04 07:19 +0000
        Re: On Binary Digits snipeco.2@gmail.com (Sn!pe) - 2025-04-04 11:53 +0100

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