Operating instructions
REPRESENTATION OF GE-225 CHARACTERS
TYPEWRITER
PAPER
TAPE CODE MAGNETIC
SPEED
1
CHARACTER
1
I
PRMTER CHARACTER (PC'XCH
1
MEMORY
BCD
1
TAPE
I-IOLLERITH HIGH
I
I
Space
I
Blank
/
/
COXSOLE
0
11-5-b
--
---
--
Print Red
0-2-8
72
SYhIUOLS
0
-
*The 400 card per mlnute card reader reads 11-0 and
11-2-a
as 52 and 12-0
anti
12-2-3
as 32.
The
1000
cards per
minute card reader treats 11-2-8 and 12-2-8 as invalid characters. The card punch punches only
11-0 for 52 and
12-0 for 32.
%
(
)
**The OCTAL notation 1s a shorthand for binary representation.
Coi~\.eri.~un between
the
tuu
representations can
be done mentally.
In
the OCTAL system, there are eight admissible
s~rnbols:
0,
1,
2,
3,
4.
5,
ti,
7.
Each may
represent (when used) a
maximum
of three binary bits.
OR ACTION
0
%
C
3
-
(a
CIIAKXEL)
Suace
Print Black
Tab
LU
ROWS)
(1
-.
Delcte
(OCTAL)**
00
(OCTAL)
12
1
0-3-6
0-4-c5
0-
5-
--
a
(kc;-
5
C&
7-
a
7
3
7
4
7
5
-
76,
7
7
33
34
35
36
3
7