MiniVac 601 was created as an educational kit for digital circuits. The creator of MiniVac 601 is Claude Shannon and the computer was sold by Scientific Development Corporation.
The benefits of electromechanical switches was primarily data storage. Six simple switches are used for binary data input, LEDs represent output, and the large round button is used to enter decimal number change. Although the MiniVac 601 was well received by hobbyists and educational institutions, but large corporations did not accept it.
However, after the manufacturer changed the colour of the casing from red and blue to black, improved the features of the switches, and re-named the model to MiniVac 6010, the price rose up to 479 USD. After these changes, hundreds of these models were sold to various companies in the 1960’s.