They were S-100 bus machines powered by the Zilog Z80 processor and typically ran on the CP/M operating system.

[5] The Z-2 gave an impression of solidity due to its hefty 450-watt power supply and heavy metal chassis.

Communication with the processor was normally performed through a TU-ART or other S-100 bus compatible interface card, which could run a CRT terminal or teletype.

[6] The Cromemco Z-2H computer was based on the Z-2D, but in addition had an 11 megabyte internal hard disk drive.

One example was work in profiling the deceleration of trains during braking in the San Francisco Bay Area Rapid Transit (BART) system during actual operation.

Cromemco Z-2D computers were employed both for data acquisition and analysis to develop an exact model of the braking profile under a variety of track conditions and train loadings.

These systems were based on the Cromemco Z-2 computer, but utilized the Motorola 68020 32-bit processor, and had a custom, removable hard drive to meet the Air Force need to be able to physically secure all flight plan information.