IBM 7090 User Manual

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FIGURE 6.0-1. IBM 7151 CONSOLE
I
Trap & Chk. Ind.
00.20.14.0-00.20.90.0
..-
Prog . Stop
I
I
o Emerg .
Index
1-0 Chk
Prog ram Register Off
Register
Rdy / Auto
00.30.40
A.B.C.
Customer
00.20.70.0
00.20.41.0
I
Program Ctr.
I
~~
Engineer's
00.30.50.0
:3'~
Panel
Channel
c:
~ a
Select
~u
0-0
Storage Register 00.20.11.0
& Trap. Ind .
e.. c:
0
Accumulator Register
00.20.30.0
See Fig. 2. 3-2
MQ Register 00.20.40 .0
L---
for Breakdown
00.60.xx.0
9.02.01 . 1
Margina'l Check Panel
~
/ Clear )/
Manual Control
Sense
"50
00.40.10.0
Keys
Switches
Voltmete rs
<""';
8
00.40.10.0
00.20.91.0
9.05.12 . 1
I
Entry Keys
I
Marginal Check
00.20.10.0
Selector Switches
9.05.11.1
-9.05.31.1
FIGURE 6.0-2. BLOCK DIAG RAM OF CONSOLE
145

IBM 7090 Specifications

General

Category	Mainframe Computer
Introduced	1959
Transistor-based	Yes
Word Length	36 bits
Add Time	4.8 microseconds
Memory	Core memory
Memory (words)	32, 768 words