IBM Personal Computer

YI
I
N
320K
Total
Memory
=
256K
+
64K
on System Board
r.n
-_
.. -
-
-------r
System Board
Switches
Switch
Block 1
Switch
Block 2
~
liDOOQODOO
I
I;~~~Q~QQQ
I
i
64/256K
Option
64K
Option
32K
Option
Card
Switches
Card
Switches
Card
Switches
~~~QQ~~~~J
1 -
64/256K
option
with
128K
installed
2 -
64K
options
~~~~QQ~~Q
I;~O~~~~~~
I
1 -
64/256K
option
with
192K
installed
1 -
64K
option
If~~~QQQ~Q
I
li~Q~~~~~~
I
I;~Q~~~~~~
I
1 -
64/256K
option
with
192K
installed
2 - 32K options
I;~~~QQQ~Q
I
I
I;~Q~~Q~~~
I
1 -
64/256K
option
with
256K
installed
li~~~QQQQ~
I
L-
- -
_ ..
_-
-
----
- -
I
)
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)