Question

What is included in the Instruction Set Architecture (ISA)?

• A. Number of Registers
• B. Clock Cycle Time or Frequency of CPU
• C. Number of Cache Levels
• D. Cache Size

Hint:

ISA defines the interface between hardware and software. It includes information about registers, clock speed, and how instructions are executed.

Answer 1

The Correct Option is A

Step 1: Understanding Instruction Set Architecture (ISA).

The Instruction Set Architecture (ISA) is a specification that defines the set of instructions and the data types that the processor understands, as well as how the processor accesses memory and interacts with other components.

Step 2: Components included in ISA.

The ISA includes:
- The number of registers available to the processor (Option A),
- The clock cycle time or frequency of the CPU (Option B), which determines how fast instructions are processed.

Thus, the correct answer is \( \text{A and B} \).