en.wikipedia.org/wiki/Von_Neumann_architecture
1 correction found
It featured the first rotating drum storage device.
That overstates Booth’s priority: earlier computers already used rotating drum memory. Booth is better credited with pioneering **magnetic** drum memory.
Full reasoning
The claim is too broad. Andrew Booth’s work was pioneering for magnetic drum memory, but it was not the first rotating drum storage device overall.
Earlier than ARC/ARC2, the Atanasoff–Berry Computer (ABC), built in 1939–1942, already used rotating drums for memory:
- Iowa State University’s ABC materials describe the machine as featuring “rotating drums for memory.”
- IEEE’s history page for the Atanasoff–Berry Computer says “The capacitors were in a rotating drum that held the electrical charge for the memory.”
By contrast, the Science Museum credits Booth’s device specifically as an experimental magnetic drum store, saying it was devised by him as a memory device. So Booth’s historical distinction is about magnetic drum storage, not the first rotating drum storage of any kind.
A more accurate formulation would be that Booth’s machine used one of the earliest, and arguably the first practical magnetic drum memories.
3 sources
- Iowa State replica of first electronic digital computer going to Computer History Museum
The ABC “features rotating drums for memory...”
- Milestones: Atanasoff-Berry Computer, 1939 | IEEE Engineering and Technology History Wiki
“The capacitors were in a rotating drum that held the electrical charge for the memory.”
- Experimental magnetic drum store | Science Museum Group Collection
“This experimental drum store was first devised by Andrew Donald Booth in London as a memory device.”