User:RyanMurphey/Computer memory
The two main types of volatile random-access memory (RAM) are static random-access memory (SRAM) and dynamic random-access memory (DRAM). Bipolar SRAM was invented by Robert Norman at Fairchild Semiconductor in 1963,[1] followed by the development of MOS SRAM by John Schmidt at Fairchild in 1964.[2] SRAM became an alternative to magnetic-core memory, but required six MOS transistors for each bit of data.[3] Commercial use of SRAM began in 1965, when IBM introduced their SP95 SRAM chip for the System/360 Model 95.[1][edit]
- ^ a b "1966: Semiconductor RAMs Serve High-speed Storage Needs". Computer History Museum. Retrieved 19 June 2019.
- ^ "1970: MOS Dynamic RAM Competes with Magnetic Core Memory on Price". Computer History Museum. Retrieved 29 July 2019.
- ^ "DRAM". IBM100. IBM. 9 August 2017. Retrieved 20 September 2019.