What type of machine, such as the Heathkit H8 which was originally sold in 1977, is required by the products created by Exidy from 1974 until 1986?
Heathkit H8 Heathkit's H8 is an Intel 8080-based microcomputer sold in kit form starting in 1977. The H8 was similar to the S-100 bus computers of the era, and like those machines was often used with the CP/M operating system on floppy disk. The main difference between the H8 and S-100 machines was the bus; the H8 used a 50-pin bus design that was smaller, more robust and better engineered electrically. The machine also included a bootstrap ROM that made it easier to start up, including code for running basic input/output and allowing input through a front-mounted octal keypad and front panel display instead of the binary switches and lights used on machines like the Altair 8800. The H8 was a successful design but required a separate terminal to be truly useful; Heathkit introduced several terminals as well. A successor model, the "All-in-One" Heathkit H89, combined a Z-80 processor board and a floppy disk drive into the cabinet of an Heathkit H19 terminal. This model also was sold in fully assembled form as the WH89. These were later sold by Zenith Electronics with their name on the front as the Zenith Z-89.
Sony SMC-70 The SMC-70 is a computer produced by Sony from 1982. Although it resembles a home computer, it was designed for professional video generation, for example in Cable television applications, and digital video effect generation. It was the first computer that used the just invented (also by Sony) 3.5" micro floppy disk drive that later became industry standard. It had a few distinctive aspects that set it aside from many of it contemporary systems. For example, it did not use a version of Microsoft BASIC, but its own Sony developed BASIC, and it could handle and display kanji characters.