Difference between revisions of "SIXBIT"

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(An OK start)
 
(Add SIXBIT character table)
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It allowed 6 characters to be carried in the then-common 36-bit [[word]]s common on many computers; with 18-bit and 12-bit computers then being common also, it had wide utility.
 
It allowed 6 characters to be carried in the then-common 36-bit [[word]]s common on many computers; with 18-bit and 12-bit computers then being common also, it had wide utility.
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The values (given in octal, the usual binary-friendly base used on the computers on which SIXBIT was used) were:
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{| class="wikitable"
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! High !! .0 !! .1 !! .2 !! .3 !! .4 !! .5 !! .6 !! .7
 +
|-
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| 0. || '   ' || ! || " || # || $ || % || & || '
 +
|-
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| 1. || ( || ) || * || + || , || - || . || /
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|-
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| 2. || 0 || 1 || 2 || 3 || 4 || 5 || 6 || 7
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|-
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| 3. || 8 || 9 || : || ; || < || = || > || ?
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|-
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| 4. || @ || A || B || C || D || E || F || G
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|-
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| 5. || H || I || J || K || L || M || N || O
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|-
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| 6. || P || Q || R || S || T || U || V || W
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|-
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| 7. || X || Y || Z || [ || \ || ] || ^ || _
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|}
  
 
{{semi-stub}}
 
{{semi-stub}}
  
 
[[Category: Coding Systems]]
 
[[Category: Coding Systems]]

Revision as of 22:12, 24 April 2024

SIXBIT is a predecessor encoding system to ASCII; it too supported encoding various glyphs (written forms such as letters, numbers, etc) in 6 bits (hence the name); it only supported upper-case characters, however. SIXBIT contains the characters with ASCII codes from 32 to 95; to get the SIXBIT code for one of these characters, simply subtract 32 from the ASCII code.

It allowed 6 characters to be carried in the then-common 36-bit words common on many computers; with 18-bit and 12-bit computers then being common also, it had wide utility.

The values (given in octal, the usual binary-friendly base used on the computers on which SIXBIT was used) were:

High .0 .1 .2 .3 .4 .5 .6 .7
0. '   '  ! " # $  % & '
1. ( ) * + , - . /
2. 0 1 2 3 4 5 6 7
3. 8 9  :  ; < = >  ?
4. @ A B C D E F G
5. H I J K L M N O
6. P Q R S T U V W
7. X Y Z [ \ ] ^ _
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