Type: Electronic digital computer
Presentation and Sale Period: Presentation and beginning of commercialisation in 1951 (first unit shipped to the Victoria University of Manchester in 1951)
Processor: none
Memory: Williams tubes (one tube stored 64 lines of electrically-charged dots storing a 20-bit word each)
Storage Media: Magnetic drum, punched tape reader
Operating System: none
Notes: The Ferranti Mark 1 was the first general-purpose electronical computer to be commercially available. It was also the first computer on which music was played.