The Zilog Z-80 powered Sorcerer was built by arcade game maker Exidy. It was short-lived and fairly unremarkable, except for one thing — it was the first home computer with a ROM cartridge port for instant program access (most home users still struggled with error-prone cassette tape storage in the late 1970s).
The designers cleverly repurposed 8-track tape shells to house the cartridge circuit board and EPROM chips ( to reduce development costs, no doubt) and a Microsoft BASIC cartridge was included with every unit.
(via Retro Thing)