PROPOSED USA STANDARD

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-04723A000100150009-1
• Release Decision: RIFPUB
• Original Classification: K
• Document Page Count: 4
• Document Creation Date: December 12, 2016
• Document Release Date: January 3, 2002
• Sequence Number: 9
• Publication Date: August 14, 1969
• Content Type: REGULATION

Approved F'c F 4j,240,2' 24k~I~CIA-RDP78-04723 M'I06+500'09'-
2. STANDARD KEYBOARD ARRANGEMENTS
2.1 Figures 1 and 2 show the standard arrangements of the keys and the
graphics assigned to them.
2.1.1 In Figures 1 and 2, the keys labelled with the letters of the
alphabet are intended to produce lower case letters in the unshifted
mode and upper case letters in the shifted mode. The other keys
in these two Figures are intended to produce the lower graphic as
shown in the key in the unshifted mode and the upper graphic as
shown in the key in the shifted mode.
2.1.2 When one of the two characters normally assigned to a key is
omitted, the remaining character may.optionally be assigned in both
modes.
2.1.3 The means by which keyboards utilizing these arrangements are to
encode the characters is not prescribed.
2.1.4 No standard locations are defined herein for function keys that
may be required on a keyboard device, other than 2 SHIFT KEYS, 1
SHIFT LOCK KEY and CONTROL FUNCTION KEY(s) which, when utilized,
shall be outboard of the two SHIFT KEYS.
2.1.5 Inboard and outboard locations are provided for the Control
characters of the United States of America Standard Code for
Information Interchange Character Set. The "inboard" control
locations shall be on the alphanumeric keys bit paired with the
characters as shown in 2.1.6. The function of the CONTROL FUNCTION
KEY(s) is to set the keyboard in the control mode while it is
operated (depressed). It will cause those keys having control
character assignments (2.1.6) to generate their respective United
States of America Standard Code for Information Interchange Control
Codes regardless of the state of the SHIFT or SHIFT LOCK KEY. The
areas designated for "outboa.rd".controls are located to the left
and to the right of the alphanumeric area. The outboard control
area is undefined in the exact placement of keys because it will
vary.with application. Depression of an outboard key with a single
control character on it will generate its respective code regar'dless?
of the state of the SHIFT or SHIFT LOCK KEY. Outboard keys may
have two control characters, one in unshifted mode, the other in
shifted mode,,providing the provisions of 2.2 are not violated.
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PROPOSED , USA STANDARD August 14, 1969
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2.1.6 If an inboard control mode is provided, the following pairings
will be observed:
NUL
@
DLE
SOH
A
DC1
Q
STX
B
DC2
R
ETX
C
DC3
S
EOT
D
DC4
T
ENQ
E
NAK
U
ACK
F
SYN
V
BEL
G
ETB
W
BS
H
CAN
X
HT
T
EM
Y
LF
J
SUB
z
VT
K
ESC
FF
L
FS
ti
CR
M
GS
J
SO
N
RS
Si
0
US
2.1.7 The character DEL (Delete) when used on a key by itself shall be
located in the outboard control area.
2.1.8 This standard-is not intended to depreciate the assignment of a
control both to a, key prescribed herein and also to another key in
a position not assigned in the standard arrangements.
2.1.9 A recommended location for a numeric cluster is adjacent to the
most frequently used outboard controls to the right of the
alphanumeric area.
2.2 The keyboard illustrated in Figure 1 and all its permissible
derivatives, as herein prescribed, shall observe logical bit
pairing rules. Specifically, the code relation between the upper
shift character and the lower shift character of any given key
shall consist only of inversion of bit 5.or inversion of bit 6.
2.2.1 In Figure 1, key DR8 produces underline in both the shifted and
unshifted modes, but may optionally produce DEL (Delete) in the
shifted mode and underline in the unshifted mode.
2.2.2 An option which provides both upper case and lower case commas
and periods is obtained either by excluding the less than and
greater than or reassigning these two characters to two alternate
locations. Examples of such an assignment would be ER7, ER8, DR6,
DR7, DR8, CR7 or elsewhere.
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PROPOSED USA STANDARD August 14, 1969
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2.2.3 A keyboard of fewer keys or characters than are encompassed by
this standard is not in conflict with this standard providing the
position assignment of the remaining characters conforms to the
following rules:
omit Key DR8 to obtain a, 47 key keyboard,
or
omit Keys DR8 and ER8 to obtain a 46 key keyboard,
or
-omit Keys DR8, ERB and to obtain a 45 key keyboard,
CR7
or
omit Keys DR8, ER8, CR7, to obtain a 44.key keyboard.
and DR7
The specified
Any pair of graphic characters allocated to the omitted keys may
either be omitted or may be reallocated to any one of the
following keys: ER7, ER8, DR6, DR7 or CR7. Any pair of characters
replaced by apa.ir of characters from one of the omitted keys is
'lost. It cannot be reallocated to another key.
Character Sete
Figure 1 that
Standard Character
Key Position (USASCII
EL5
*BR3
ER6
*BR4
DR9
Substitute Character
(USASCSOCR)
Lr
Y
rd
CE; *
CE**
** at this writing these characters will be included in a
proposed revision
LVL One o cnaracters of the USA Standard
for Optical Character Recognition (X3.17-1966) in
are not in USASCII are as follows:
None
* or as specified in Paragraph 2.2.2
2.3 The keyboard Illustrated in Figure 2 resembles as closely as
possible, the electric typewriter arrangement as designated
in Document X4.7-1966.
2.3.1 A keyboard of-fewer keys or characters than are encompassed by
this standard'is not in conflict with this standard providing the
position assignment of the remaining characters conforms to the
following rules:
omit ERB to obtain a 46 key keyboard
omit ERB, CR7 to obtain a 45 key keyboard
omit ERB, CR7 and DR7 to obtain a 44 key keyboard
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PROPOSED USA STANDARD August 14, 1969
Any of the graphic characters allocated to the omitted keys may
either be omitted or may be reallocated to any of the following
keys: ER8, CR7, DR7 or DR6. Any character replaced by a.
character from ohe of the omitted keys is lost. It cannot be
reallocated to another key.
Standard 44 key arrangements may have on key DR6 any two of the
omitted characters from ER8, DR7, CR7, DR6, BR3 or BR4.
2.3.2 An option which provides both upper case and lower case cormnas
and periods is obtained either by excluding the less than and
greater than or reassigning these two characters to an alternate
location(s). Examples of such an assignment would be ER7, ER8,
DR6, DR7, DR8, CR7 or elsewhere.
2.3.3 The specified locations for the 6 characters of the USA Standard
Character Set for Optical Character Recognition (X3.17-1966) in
Figure 2 that are not in USASCIX are as follows: .
Key Position
Standard Character Substitute Character
(USASCII) (USASCSOCR)
EL5
EL4
EL3
ER1
DR6
DR6
** at this writing these characters will be included in a proposed
revision
2.3.4 To provide complete compatibility with X4.7-1966 Preferred Keyboard
Arrangement, an optional arrangement of Figure 2 provides these
substitutions: for I on ER1, 1/4 for on DR6, and 1/2 for n
on DR6.
Approved For Release 2002/01/29 : CIA-RDP78-04723A000100150009-1