This system was loaded from cards, but thereafter also supported magnetic tape or magnetic disk for programs and data. The 9400 and 9480 ran a real memory operating system called OS/4. As Sperry moved into the 1970s, they expanded the 9000 family with the introduction of the 9700 system in 1971.
This system initially used cards for loading but later adopted magnetic tape or magnetic disk for programs and data. The 9400 and 9480 ran a real memory operating system called OS/4. Sperry expanded their 9000 family with the introduction of the 9700 system in 1971.