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The
655
Power
Unit contains
the
power
supplies
for the 650, 533's
and
537
T
s in
addition
to
input- output translating circuits
The
727 Magnetic
Tape
Units contain the tape feeding
mechanism
and
the
reading
and
writing
mechanisms
The
355 Disk Storage provides
a large capacity storage
of data
with
random
access.
The
unit
contains the
disks,
access
arms
and
control
mechanism. There
are
side
windows
in the
355
units for
viewing
the
mechanisms,
but
it
is
unnecessary
for the
operator
to
see these
windows from
the
650 Console
unit..
The
407 Accounting
Machine
is
an
input-output
unit.
It
has
components
for
reading
data
from
cards, storage
of
data,
transmitting data
to
the 650, printing data
stored
from
cards or received
from
the
650
The
533
Card Read
Punch
is
a
card
input- output
unit.
It
has two independently
operated
feeds,
one
for
reading
data
from
cards
to
the
650 and one
for
punching
data
into
cards
from
the
650
The
537
Card Read
Punch
is
a
card
input-output
unit.
It
has one card
feed,
where
data
can be read
from
cards
to
the
650
and
data
punched
into
cards
from
the
650
The
838
Inquiry
Station
is
a modified
IBM
Electric Typewriter,
stand,
and
appropriate
control
circuits, that
permit
the
operator
to
obtain a
record
from
the
disk storage or insert limited data
into the
disk storage.
Access
to
the
various
units
by customer personnel
will
vary
with the type
of
application.
However,
only occasional
reference
to
the 652,
653
and 355
is
required.
10
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