ISO/IEC 9995-4:1994

INTERNATIONAL ISO/IEC
STANDARD 99954
First edition
1994-08-I 5
Information technology - Keyboard
layouts for text and office systems -
Part 4:
Numeric section
Technologies de Yin formation - Disposition des claviers conGus pour la
bureautique -
Par-tie 4: Module numkique
Reference number
ISO/l EC 9995-4: 1994(E)
ISO/IEC 9995-4: 1994(E)
Contents
Page
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1 Scope
2 Conformance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
..................................................................... 1
3 Normative references
4 Definitions . 1
.,. 1
5 Arrangement and location
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
6 Division into zones
7 Arrangement, location and functions of the keys in the numeric
zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . 3
8 Allocation of functions to the keys of the numeric zone
. . . . 5
9 Arrangement, location and functions of the function zones
. . . . . . 6
10 Allocation of functions to the keys of the function zones
0 lSO/IEC 1994
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II
0 lSO/IEC
ISO/IEC 9995-4: 1994(E)
Foreword
IS0 (the International Organization for Standardization) and IEC (the Inter-
national Electrotechnical Commission) form the specialized system for
worldwide standardization. National bodies that are members of IS0 or
IEC participate in the development of International Standards through
technical committees established by the respective organization to deal
with particular fields of technical activity. IS0 and IEC technical com-
mittees collaborate in fields of mutual interest. Other international
organizations, governmental and non-governmental, in liaison with IS0 and
IEC, also take part in the work.
In the field of information technology, IS0 and IEC have established a joint
technical committee, lSO/IEC JTC 1. Draft International Standards adopted
by the joint technical committee are circulated to national bodies for vot-
ing. Publication as an International Standard requires approval by at least
75 % of the national bodies casting a vote.
International Standard lSO/IEC 9995-4 was prepared by Joint Technical
Committee lSO/IEC JTC 1, Information technology, Subcommittee SC 18,
Document processing and related communication.
This first edition supersedes all or part of
IS0 1090:1981
IS0 1091: 1977
IS0 1092: 1974
IS0 1093:1981
IS0 2126:1975
IS0 2530: 1975
IS0 3243: 1975
IS0 3244: 1984
IS0 4169:1979
IS0 8884: 1988.
For complete details, see annex A of part 1 of lSO/IEC 9995.
lSO/IEC 9995 consists of the following parts, under the general title In-
- Keyboard layouts for text and office systems:
formation technology
- Part I: General principles governing keyboard layouts
- Part 2: Alphanumeric section

0 lSO/IEC
ISO/IEC 9995-4: 1994(E)
- Part 3: Complementary layouts of the alphanumeric zone of the al-
phanumeric section
- Part 4: Numeric section
- Part 5: Editing section
- Part 6: Function section
- Part 7: Symbols used to represent functions
- Part 8: Allocation of letters to the keys of a numeric keypad

INTERNATIONAL STANDARD 0 lSO/IEC ISO/IEC 9995-4:1994( E)
Information technology - Keyboard layouts for text
and office systems -
Part 4:
Numeric section
1 Scope 3 Normative references
The following standards contain provisions which,
Within the general scope described in part 1 of
through reference in this text, constitute provisions
lSO/IEC 9995 this part of lSO/IEC 9995 specifies the
of this part of lSO/IEC 9995. At the time of publi-
numeric section of a keyboard and the division of that
cation, the editions indicated were valid. All standards
section into zones. It specifies the arrangement, the
are subject to revision, and parties to agreements
number, and the location of the keys in the numeric
based on this part of lSO/IEC 9995 are encouraged to
zone ZNO and in the function zones ZNI to ZN6 of the
investigate the possibility of applying the most recent
numeric section, as well as the allocation of functions
editions of the standards indicated below. Members
to the keys.
of IEC and IS0 maintain registers of currently valid
The numeric zone ZNO is to be used in keyboards for International Standards.
applications such as text and data processing; general
ISO/I EC 9995-l : 1994, Information technology - Key-
office environment; banking; point of sales (POS);
board layouts for text and office systems - Part 7:
telematic services; telephony apparatus; home elec-
General principles governing keyboard layouts.
tronic systems; numerical control of machinery and
equipment; input of personal identification number
CCITT Recommendation E.161, Arrangement of Fig-
(PIN); etc.
ures, Letters and Symbols on Telephones and other
The function zones ZNI to ZN6 are to be used in Devices that can be used for gaining Access to a
keyboards for applications such as data entry, text and Telephone Network.
data processing, general office environment, etc.
4 Definitions
NOTE 1 Certain of these applications are under the re-
sponsibility of the ITU-T.
For the purposes of this part of lSO/IEC 9995, the
definitions given in lSO/IEC 9995-
1 aPPlYa
5 Arrangement and location
2 Conformance
The numeric section is generally a rectangular ar-
rangement of keys located to the right of the alpha-
Equipment is in conformance with this part of
numeric section and the editing section and below a
lSO/IEC 9995 if it meets the requirements of clauses
part of the function section, see lSO/IEC 9995-l.
5 to 10 and either 8.1 or 8.2.
0 lSO/IEC
ISO/IEC 9995-4: 1994(E)
ZNO is the numeric zone of the numeric section. The
6 Division into zones
arrangement, the number, and the locations of the
keys as well as the allocation of functions to the keys
The numeric section is divided into zones as illus-
trated in figure 1. are specified in clauses 7 and 8.
ZNI to ZN6 are the function zones of the numeric
Not drawn to scale - all lines are o sly indicative
section. The arrangement, the number, and the lo-
cation of the keys as well as the allocation of func-
tions to the keys are specified in clause 9.
ZN4i ZN3 1ZN2
I
I
I
I
I
ZN5i
-w---J ZNO IZNl
7 Arrangement, location and functions
of the keys in the numeric zone
--------------------- A -------
The keys shall be arranged in the numeric zone ZNO
and be located as illustrated in figure2.
ZN6
The functions to be allocated to the keys of the nu-
merit zone are the digits zero to nine, the decimal
Division of the numeric section into
F
...