IBM Personal Computer

UI
I
..
c:7\
00
!.
System Board
Switches
~ ~
I
1 -
64/256K
option
with
64K
option
installed
1 -
64K
option
2 - 64K options
1 -
64/256K
option
with
64K
installed
2 -
32K
options
1 -
64K
option
2 - 32K options
1 -
64/256K
option
with
128K
installed
-
)
192K
Total
Memory
128K
+
64K
on System Board
Switch
Block 1
liDOQQOOOD
I
Sw~h~ock2
64/256K
Option
64K
Option
Card
Switches
Card
Switches
I;~~~Q~OOO
I
It~~O~~~~~
I
I;~~~~~~~~
I
li~~O~~~~~
I
li~~~O~OQO
I
li~~~Q~~~~
I
It~~~QO~QO
I
-
-
..
_--
-
)
~~~O~~OQOI
32K
Option
Card
Switches
,
li~~O~~~~~
I
I;~~Q~Q~~~
I
I;~~O~~~~~J
~~~O~Q~~~
I
-
)
I