Operating instructions
PREFACE
This manual has been prepared as a
guide
to operating the central processor for the GE-225
Information Processing system. It includes
a
brief description of the major components of the
system, general operating practices, system startup and shutdown, and a detailed description
of the controls on the operator's cocsole and
ty2ewriter.
Part
I
has been revised
to
include descriptions and illustrations
of
equipment not included in the
earlier editions of this manual.
The
appendix includes
a
section
on
number
systems,
a
table
of
powers of 2, and octal-decimal
conversion tables.
Much of the basic information about machine instruction repertoire and
programs is necessarily brief,
since this information
is
contained in detail in the GE-225
Programming Reference Manual (CPB-252).
This manual supersedes the former GE-225 System Operating
Manual
(CPB-247A).
The operating
information on peripheral subsystems contained
in
that
manual
is
now covered
in
separate
manuals for each subsystem.
A
list of these manuals appears
in
Appendix
E.
Much of the information in this manual
is
also
applicable
to
the GE-205 and GE-215 central
processors which
have
virtually identical
operating
controls and procedures.
In
this revised edition, changes in technical content from the previous edition are identified
with
a bar in the margin
opposite
the change.
Suggestions
and
criticisms relative
to
form, content, or use of this manual are invited.
Comments
may be sent on the Document Review Sheet in the back of this manual or may be addressed directly
to Document Standards and Publications, B-84, Computer Equipment Department, General Electric
Company,
13430
North Black Canyon Highway, Phoenix, Arizona 85029.
@
1962,
1964,
1966 by General Electric Company
(600
4-67)