IBM Personal Computer

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System Board
Switches
1 -
64/256K
option
with
256K
installed
1 -
64/256K
option
with
192K
installed
1 -
32K
option
Cll
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!JII
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544K
Total
Memory
480K
+
64K
on System Board
Switch
Block 1
Switch
Block 2
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64/256K
Option
64K
Option
Card
Switches
Card
Switches
If~~~QQQQ~
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li~Q~QQQ~Q
I
If~QQQ~QQQ
I
32K
Option
Card
Switches
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