Alternate Main Processor Board - NCR PC4i Service Manual

SYSTEM OVERVIEW

ALTERNATE MAIN PROCESSOR BOARD

Since the introduction of the NCR Personal Computer
PC4i a new style Main Processor Board,
"Alternate" Main Processor Board (in this manual
sometimes referred to as "Generic" Main Processor
Board) has been introduced. Much of the information
in this manual applies both to the "Alternate" Main
Processor Board and to the two Early-type
Processor Boards. The "Alternate" MPB is used in a
v a r i e t y of
characteristics of this board are its 8 slots,
switch packs,
accessibility.
installed are marked with a "G" (which stands for
"Generic") on the PC board rack.
1-8
N C R c o m p u t e r s .
VLSI ICs,
Computers
D i s t i n g u i s h i n g
RAM location
with such
known as
Main
2
and RAM
a mainboard