General Description - IBM 650 SYSTEM Installation Manual

GENERAL DESCRIPTION
A
650 Data Processing
System
is
made
up
of
a
combination
of
several units
connected by cables
A
650 Basic
System must
have:
650 Console Unit
1
only
655
Power
Unit
1
only
These
units
may
be
installed:
407 Accounting
Machine
533
Card Read
Punch
537
Card Read
Punch
653 Storage Unit
1
only
A
650 System
with
magnetic
tapes
and/or disk storage
must
have:
650 Console Unit
1
only
652 Control Unit
1
only
653 Storage Unit
1
only
655
Power
Unit
1
only
727 Magnetic
Tape
Unit
1
to 6
and/or
355 Disk Storage
1
to
4
These
units
may
be
installed:
407 Accounting
Machine
533
Card Read
Punch
537
Card Read
Punch
838 Inquiry
Station
The
650 Console Unit has
a control console
and
contains the
magnetic
drum
and
the logical
and arithmetic
circuits
.
The
652 Control Unit has an
indicating panel
and
contains the
power
supply
and
control circuits for
the
727 and/or
the
355 and 838
units.
The
653 Storage Unit has an indicating panel
and
may
contain
immediate access
storage, index registers
and automatic
floating-
decimal arithmetic. This
unit
with
immediate access storage
is
a
necessary component
of a tape
system, and/or
disk storage system.