Question

Which computer was the first to use the magnetic drum for memory ?

• A. IBM - 650
• B. IBM - 7090
• C. IBM - 701
• D. IBM - 360

Answer 1

Answer:

A. IBM - 650

The IBM 650 Magnetic Drum Data-Processing Machine is one of IBM's early computers, and the world's first mass-produced computer. It was announced in 1953 and in 1956 enhanced as the IBM 650 RAMAC with the addition of up to four disk storage units.