Texas Instruments 990 Installation And Operation

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APPENDIXF
JAPANESE KATAKANA KEYBOARD ARRANGEMENT,
HEXADECIMAL CODES, MODE CHARACTER POSITIONS,
MODIFIED ASCII (JIS-8), SPECIAL CHARACTER SET,
AND ADDITIONAL EIGHT-BIT DISPLAYED CHARACTER SET
The standard limited-ASCII Japanese Katakana Model 911 VOT keyboard layout and symbolization
are shown in figure F-l. Figure F-2 shows the same keyboard with keys numbered. Figures F-3
through F-8 show keyboard mode character positions. Table F-l lists the Japanese Katakana modi-
fied
ASCII (J IS-8) and special character set. The additional 128 eight-bit characters included in the
displayed character set are illustrated in figure r -9.
(A) 140708
11
'2
13
32 33
34
52 53
54
72
73 74
** 75 AND 86 ARE WIRED IN
PARALLEL
(B)'36267C
Figure F-l. Japanese Katakana Model 911 VDT Keyboard Arrangement
'0
28
29
30
3'
49 50
5 ,
69
70
7'
·
87
BB
·
·
89
ACTIVE
----.J
i
90
9'
DUMMY
Figure F-2. Japanese Model 911 VDT Keyboard with Keys Numbered
F-l
Digital Systems Division

Texas Instruments 990 Specifications

General

Brand	Texas Instruments
Model	990
Category	Desktop
Language	English