Referring to Figure 1-1, the following illustrates the
ease
of
Identification, using Model
D3322-1064-NWU
as
an
example.
(1)
03 is the basic prefix used on all 03000 Series.
(2)
3 in the third position indicates a 1
00
tpi device.
(3)
2 in the fourth position indicates a 5440-type cartridge plus fixed disk.
(4)
2 in the
fifth
position indicates a spindle speed of
2400
rpm.
(5)
I in the sixth position indicates that the 5440-type cartridge
to
be utilizea has a
normal index notch only.
(6)
064
in the seventh, eighth,
and
ninth positions indicate a 64-sector device.
(7) N in the tenth position indicates a Normal (standard) interface configuration
option.
(8) W in the eleventh position indicates the unit is provided with Write Protect
switches.
(9) U in the twelfth position indicates the unit is provided with Unit Number Selector
switch.
1.2
PURPOSE
OF
EQUIPMENT
The disk drive has the capability
of
recording digital data on IBM
2315-
or 5440-type
cartridges utilizing the double-frequency method of recording. Spindle speeds up to
2400
rpm and data storage
of
up
to 101.5 megabits are provided by the 03000 Series Disk Drive.
Data recorded on the removable media
can
be
recovered when played back on any 03000
Series
having the same cartridge type, density, format,
and
speed.
The
03000 is a rotating magnetic memory capable of storing and retrieving data in digital
form.
The
storage media is
an
aluminum disk coated
on
both surfaces with a layer
of
ferro-
magnetic material suspended in
a binder. Data
are
stored serially in concentric tracks
on
both surfaces
of
the disk.
The basic disk drive is available
as
a single-disk or dual-disk device. All models are
capable
of
accepting removable media with the removable disk enclosed in a cartridge
assembly. Depending
on
the model, the disk drive will accept either the top loading
5440-type
or
the front loading 2315-type cartridge.
Single-disk models
have
provisions for the removable cartridge only; dual-disk models
have
provisions for the removable cartridge
and
a fixed disk enclosed within the drive
housing.
The disk drive is intended for use in conjunction with a formatter
or
controller to provide
rapid access mass memory for
small and medium size computers.
An integral power supply is included in the disk drive
and
operates directly from Single
phase power.
1.3
PHYSICAL
DESCRIPTION
OF
EQUIPMENT
The
top loading configuration of the 03000 Disk Drive utilizes a 5440-type cartridge and is
shown in Figure 1-2; the front loading configuration utilizes a 2315-type cartridge and is
shown in Figure 1-3.
1-2
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