It used DPDT electrical relays as logic switches and for temporary data storage.

The components could be interconnected by manually inserting jumper wires fitted with tapered pin connectors into sockets on the main circuit board.

An "advanced and improved" version called the Minivac 6010 was released in early 1962, housed in a gray metal case and featuring higher-quality components.

[4] It was supplied with additional patch cords incorporating special resistors, capacitors, and diodes for further capabilities.[which?

][4] Although the price was also increased considerably, the system was more successfully sold to the corporate market, rather than as a toy.