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