No, it is not. It can perform an instruction fetch and data operation at the the same time and so, by definition, it is not.
No, it is not.
A von neumann machine is a digital computer that incorporates serial counters and stored programs that were proposed by von Neumann and his colleagues in 1946. It was the basic design of a modern or classical computer.
John von Neumann
main components of computer
The machine was the EDVAC computer.
Von Neumann found the EDVAC
John von Neumann
Philipp von Neumann died in 1851.
Philipp von Neumann was born in 1781.
Von neumann architecture advantage and disadvantage
never, computers existed before he became aware of them
John von Neumann was born on December 28, 1903.