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The two factors that determine the capacity of the address space are _____.a.the number of bits in the memory address register and the number of bits in the address fieldb.the size of memory and the number of bits in the address fieldc.the number of bits in the memory address register and the size of memoryd.the word length format and the hardware

Question

The two factors that determine the capacity of the address space are _____.a.the number of bits in the memory address register and the number of bits in the address fieldb.the size of memory and the number of bits in the address fieldc.the number of bits in the memory address register and the size of memoryd.the word length format and the hardware

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Solution

The two factors that determine the capacity of the address space are the number of bits in the memory address register and the number of bits in the address field. So, the correct answer is a. the number of bits in the memory address register and the number of bits in the address field.

Here's why:

  1. The number of bits in the memory address register: This determines how many different addresses your system can handle. For example, if you have a 32-bit address register, you can directly address 2^32 different memory locations.

  2. The number of bits in the address field: This determines how many different addresses can be represented in the instructions that your CPU can execute. If the address field in your instructions is also 32 bits, then your instructions can directly address the same 2^32 different memory locations.

The size of the memory and the word length format and the hardware do not directly determine the capacity of the address space. They might limit how much of the address space can be used effectively, but they do not determine the capacity of the address space itself.

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