3791 TSO NTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION -MEKAYHAPOIHA OPTAHH3ALIMS HO CTAHIAPTH3ALIWW.ORGANISATION INTERNATIONALE DE NORMALISATION Office machines and data processing equipment - Keyboard layouts for numeric applications Machines de bureau et machines employées en traitement de I'information -- Disposition des claviers concuspourdesapplications numeriques First edition - 1976-08-01 ISO 3791-1976 (E) UDC 651.2 : 681.32-51 Ref. No. ISO 3791-1976 (E) Descriptors : office machines, data processing equipment, auxitiary equipment (computers), keyboards, numeric character sets, position (location). Price based on 3 pages Copyright International Organization for Standardization d without license from IHS Not for Resale FOREWORD ISO (the International Organization for Standardization) is a worldwide federation of national standards institutes (ISO Member Bodies). The work of developing Internationai Standards is carried out through ISO Technical Committees. Every Member Body interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work. Draft Internationai Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as International Standards by the ISO Council Technical ( International Standard ISO 3791 was drawn up by Committee ISO/TC 95, Office machines, , and was circulated to the Member Bodies in May 1975. It has been approved by the Member Bodies of the following countries : Italy ayn Australia Czechoslovakia Japan United Kingdom France Romania U.S.A. Germany Sweden U.S.S.R. Iran Switzerland Yugoslavia No Member Body expressed disapproval of the document. @ International Organization for Standardization, 1976 : Printed in Switzerland CopyrightInternational Oorganization for Standardization Not for Resale etworking permitted without license from IHS ISO 3791-1976 (E) INTERNATIONAL STANDARD Office machines and data processing equipment - Keyboard layouts for numeric applications an array of three rows of three keys, to which the 1 SCOPE numerals 1 to 9 are allocated; This International Standard specifies the basic layout of zero/decimal area, numerals and symbols on keyboards intended to be used in applications where the data are generally numeric. additional optional keys. 2 FIELD OF APPLICATION 4.1 Numerals 2.1 : This International Standard is intended for use in The numerals 1 to 9 are allocated to the three rows of three establishing complete keyboard layouts for particular keys in the order shown in figure 1. machines. It is applicable to both office machines and data processing equipment, and to both numeric and alpha- 51 52 53 numeric keyboards. It does not apply to alphanumeric keyboards with an in-board numeric cluster. D 2.2 The layouts described in this International Standard are concerned oniy with the nominal relative positions of keys; they are not intended to define physical factors, such C (0 s key spacing, keyboard slope, size and shape of keytops, aor the way in which the keytops are inscribed. The definition of such physical factors may be the subject of other International Standards.1) 3 B 3 REFERENCE ISO 1092, Adding machines and calculating machines - Numeric section of ten-key keyboards. FIGURE 1 NOTE - To cover particular requirements, the transposition of the 4 LAYOUT characters allocated to keys B 51, B 52 and B 53 with the characters allocated to keys D 51, D 52 and D 53 respectively is allowed as an A keyboard in accordance with the present International option. Other International Standards may define which alternative Standard comprises three parts : is to be used for particular applications.1) 1) For application to adding and calculating machines, see IS0 1092. Copyright International Organization for Standardization cing permitted wit