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PWB also has a standard DC power connector. The Model FDD100-5 Disk Drive has an unformatted
data storage capacity of 125K bytes on 40 tracks per diskette side. To obtain compatibility with
other disk drives that have less capacity, only the first 35 tracks are normally used. The first 35
tracks provide an unformatted data storage capacity of 109.4K bytes. Formatting the disk drive is a
function of the host system.
1.2.1
DOUBLE DENSITY
By using M FM, M2FM or GC R double-density encoding techniques, unformatted data storage capac-
ity on the _single-sided diskette can be increased to 250K bytes (40 tracks) or 218.8K bytes (35
tracks). An optional system that uses dual index and file protect sensors permits data storage on both
sides of a dual-sided diskette. This option, coupled with double-density encoding techniques and ex-
tended track capability, makes it possible to store up to 500K bytes of data on a single diskette.
1.2.2
DAISY CHAIN CAPABILITY
Up to four Model FDD100-5 Disk Drives can be daisy chained on a single bus. When all expanded
capacity features of the disk drives are employed, a total unformatted system capacity of two mega-
bytes is attainable.
1.2.3
APPLICATIONS
Options that can be selected and installed by the customer are available to broaden applications.
The Model FDD100-5 Disk Drive can be used in the following applications:
A.
Microcomputer program/load storage.
B.
Power typing systems.
C.
Microprocessor systems.
D.
Word processing systems.
E.
Desk-top calculators and portable computers.
F.
Text editing systems.
G.
Smart terminals.
1-2
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