Computer Science for IGCSE & O level - Hardware (Section 19 - No. 35)

What is a major disadvantage of the Von Neumann architecture?

It's difficult to program.

The 'fetch-decode-execute' cycle is slow.

The processor can only handle one task at a time.

The single memory space can lead to a bottleneck (the Von Neumann bottleneck).

The shared memory space can create a bottleneck as the CPU competes to fetch instructions and data.