Sixty years earlier, all elements of an electronic product were fabricated by the same firm which manufactured the final product. This implied that the fabricator had to buy the raw materials, hire specialists, carry inventory for all individual element which goes into the item. Besides, this created it very tough for SMEs with small runs to penetrate into the market and contend. 

The market is ready for electronic manufacturing services providers which have expertise over design & manufacture of certain elements which will then be sold to the original equipment manufacturers to be put in the final item. Narrowing the concentration of a firm to only one product or element facilitated them to provide economies of scale in the possession of raw materials, talent as well as specialization in the design procedure, and equipment for manufacturing. This curtails prices for the OEM and loosens their capital.