There have been a lot of different mass storage methods over the relatively short lifespan of the computer. Magnetic tapes, drums, all sorts of disks, and flash memory have each had their time.

While a modern computer will add a word all at once ... the sewing machine company) and a magnetic drum with 4096 32-bit words. To keep the component count down, the drum stored the program ...

Engineer was behind the HEC series and more Obit Raymond Bird, who developed the UK's first mass-produced business computer, ...

Each track had its own read/write head. Magnetic drums were used in the 1950s and 1960s. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.