ILLIAC IV was one of the first large scale computer projects to use semiconductor RAM for main memory.
The oxide-isolated bipolar process supported the speed needs of supercomputers.
A very low-power CMOS (Complementary MOS) memory array developed for the U. S. Air Force.
A consortium of Japanese of manufacturers dominated production of 256K DRAMs.
IBM's first semiconductor memory chip was used in the System/360 Model 95 mainframe supercomputer.
Intel successfully targeted its first commercial MOS DRAM at users of older magnetic core memories.
Within a year of their introduction, these 2K DRAMs were replaced by 4K chips.
Erasable, Programmable Read-Only-Memories (EPROM) retained data after power was removed.