IBM Personal Computer

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------
)
System Board
Switches
1 -
64/256K
option
with
128K
installed
2 -
64K
options
1 -
64/256K
option
with
192K
installed
1 -
64K
option
!
r.n
1 -
64/256K
option
with
192K
installed
2 -
32K
options
I
~
1 -
64/256K
option
with
256K
installed
CIa
I
".
CIa
) )
512K
Total
Memory
256K
+
256K
on System Board
Switch
Block 1
Switch
Block 2
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li~QQQ~QQQ
I I
I
64/256K
Option
64K
Option
32K
Option
Card
Switches
Card SWitches
Card
Switches
I
I
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I
If~Q~~Q~QQ
I
It~QQQ~~~~1
It~Q~~QQ~Q
I
li~QQQ~~~~
I
I
li~QQQ~~~~
I
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1
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