™ single-disk subsystem with a total of 315KB
of formatted on-line storage. Includes one disk drive, S-100/8080/Z80 compatible controller
(Model 1071), drive enclosure, interface cable A and power supply.
The 1043-II is the single-drive version of the 1053-II
dual-drive. It is a single head / single-sided drive. The roman numeral "II" indicates it
operates at 77 tracks / 100 TPI. This drive only accepts hard-sectored media when used with the bundled
There's another variant of the 1043-II, the 1041-II, which has no power supply or regulator/
heat-sink-package but a bundled power cable instead and a leaner enclosure so it can be
used in desk-top-mode or installed in a chassis.
Model 1043 Mod II
is a master module, used with a Micropolis 1071
controller and interface cable A
. Its sister-module 1023 Mod II
add-on module only.
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.