of Hayes
1955 EMI formed a controlling and coordinating subsidiary, EMI Electronics Ltd, to lead the expansion of business in commercial and industrial electronics (but not government business); the company was previously known as Emitron Television Ltd; it would absorb EMI Engineering Developments, EMI Factories, and EMI Research Laboratories[1]
1957 Built the company's first computer product, the EMI Electronic Business Machine, in response to an order from the British Motor Corporation for a computer to process its payroll. The computer used approximately 2000 valves, and magnetic cores/transistor circuits for the input/output circuits. It was the first electronic computer installed in England making full use of magnetic tapes and drum for memory, thereby enabling all the required final data to be obtained from one single processing of a departmental pay unit.[2].
The company won a contract from NRDC to develop a transistor-based computer, which resulted in the Emidec 2400.