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APPENDIX A - SYSTEM CHARACTERISTICS
PHYSICAL DAT A
•
2050 Processing Unit has three frames: CPU,
Main Storage, and Power.
•
Power frame connects the CPU and Main Storage
frames.
• System control panel is mounted on the CPU
frame.
The 2050 Processing Unit (Figure 134) consists
of the CPU frame, the main storage frame, and the
power frame.
The CPU frame contains the CPU logic, the chan-
nels, the capacitor read only storage, and the local
storage. The system control panel is mounted on
one end of this frame. Within the CPU frame are
three hinged gates (A, B, and E on Figure 135).
Each hinged gate holds twenty printed circuit boards.
One fixed gate (C) with a hinged section (D) contains
the capacitor read only storage (ROS) and twelve
printed circuit boards.
The main storage frame houses the main storage
modules, their associated logic, and large capacity
fv\ain Storage
FIGURE 13-4. lllM 2050 PROCESSING UNIT
138
(3/71)
Model
50 FEMM
Storage Frame 02
0 L.....__ ....
l
IL_A
.__.l_' f __.a
I
6
.-
0
1/0
Ponel-G
(Tail Gate)
CPU Frame 01
Power Frame 03
A
8
CD
1052
1/0
Panel-H
---t:==~n_.
. . . ...,
(Tail Gate)
F
Reading Board
FIGURE 135. IBM 2050 FRAME AND GATE LAYOUT
CPU, Channel, ROS
Reading
Board
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