Final answer:
Instructions are fetched from memory in the von Neumann Architecture, but they are executed by the CPU, not just the ALU. The ALU performs arithmetic and logic operations as part of the CPU.
Step-by-step explanation:
The statement is partly true. In the von Neumann Architecture, instructions are indeed fetched from memory. However, the execution of these instructions is not solely the role of the Arithmetic Logic Unit (ALU). The fetched instructions are typically executed by the Central Processing Unit (CPU), of which the ALU is a component. The ALU specifically performs arithmetic and logic operations. The entire process is orchestrated by the control unit, another component of the CPU, which decodes the instructions and manages the execution process, guiding data between the ALU, registers, and memory.