BS 5231:1975
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for principles governing the positioning of control keys on keyboards of office machines and data processing equipment
Hardcopy , PDF
11-15-1994
English
09-30-1975
Guidance for allocating control functions to specific keys. Outlines principles to observe in positioning areas for control keys in relation to \'graphic\' areas on numeric, alphanumeric and composite keyboards.
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