System Block Diagram (Portable)
The following
is
a system block diagram of the IBM Portable
Personal Computer.
SYSTEM
UNIT
Composite
CRT
8
Interrupt
Speaker
Levels
Adapter
4
Channels
Keyboard
Direct
Memory
Adapter
Access
Keyboard
Speaker
Power
Supply
114 Watt
4 Level
Read-Only
Memory
Oscillator
System Board
8088
Memory
Math
Coprocessor
(Optional)
6
7
8
3
4
5
2
~Diskette
Adapter
4
Extender
Card
to
Receiver
Card*
~
~Color/Graphics
Adapter
See
the
Expansion
Unit
Block Diagram
Note: A "System to Adapter Compatibility Chart," to identify
the adapters supported by each system, and an
"Option
to
Adapter Compatibility Chart," to identify the options supported
by each adapter, can be found in the front matter of the
Technical
Reference
Options and Adapters manual, Volume
1.
xviii
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