IBM Personal Computer

UI
I
"'" "'"
l
1/'1
i
System Board
Switches
1 -
64/256K
option
with
192K
installed
1 - 32K option
1 -
64/256K
option
with
128K
installed
1 - 64K option 1 - 32K option
480K
Total
Memory
224K
+
256K
on System Board
Switch
Block 2
Switch
Block 1
l;oOQQOOOD
I
64/256K
Option
Card
Switches
I;~Q~~QQ~Q
I
li~Q~~Q~QQ
I
64K
Option
Card
Switches
I;~QQ~~~~~
I
liQ~~Q~QOQ
1
32K
Option
Card
Switches
I;~QQQ~~~~
I
li~QQQ~~~~
I
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