In 1983, S-100 systems were still popular, and MicroDyne claimed that the MCS-100 was the only S-100 portable available at the time, although at least one other manufacturer (MicroStandard Technologies) offered it as an option. This makes the MCS-100 an interesting find for S-100 as well as portable collectors. One of the dual Z80A CPUs controlled the video.
Microdyne MCS-100 (1983, transportable)
Base Configuration: two 4MHz Z80A CPU, CP/M Plus 3.0, four S-100 slots, 256K RAM, two 5.25-inch floppy disk drives, 46MB hard disk drive, integral 9-inch monochrome CRT, keyboard/keypad, RS-232C and parallel ports, application suite, BASIC-80, internal modem
Video: 25-line x 80-column text