™ dual-disk subsystem with a total of 630KB
of formatted on-line storage. Includes two disk drives, S-100/8080/Z80 compatible
controller (Model 1071), drive enclosure, interface cable A and power supply. The
1053-II is the dual-drive version of the single-drive 1043-II.
Model 1053 Mod II
is a master module, used with a Micropolis 1071
controller and interface cable A
. Its sister-module 1033 Mod II
add-on module only.
The drive has file-protection circuitry and other standard features include a disk-insertion interlock
that prevents accidental damage to the diskette by preventing the user from closing the drive
door unless the diskette is positioned properly. Large lighted numerals clearly show the
logical address of each drive, to further prevent operating errors.
Note on Micropolis' floppy drive naming convention
If you ask yourself what the meaning of the Roman numeral literals in disk drive names
is, here's the explanation: Labeling convention for the Micropolis floppy disk drives
from the 1040/1050 series is that each model number is followed by either the notation
"Mod I" or "Mod II". These notations indicate whether the system operates at a track
density of 48 TPI (35 tracks total) or 100 TPI (77 tracks total). "Mod I" storage modules
have a black disk load actuator and "Mod II" modules have a blue disk load actuator.