For this question, check all that apply. Which of the following five choices is/

Question

1. For this question, check all that apply. Which of the following five choices is/are specified as part of an Instruction Set Architecture (ISA)?
   Bit-level encoding of instructions
   The function units and data paths between them
   The precise execution time taken by each type of instruction
   The maximum power that can be consumed by the processor
   The type of basic gate used (e.g., NAND vs NOR) to implement it
2. For this question, check all that apply. Which of the following statements about how computer technology has been changing over the last few decades is/are true?
   Processors have been getting simpler.
   Main memory access time has been decreasing.
   Cost per byte of disk memory has been decreasing.
   Power consumption per transistor has been decreasing.
   The complexity of circuitry that fits on a single chip has been increasing.
3. For this question, check all that apply. Which of the following abstraction levels is/are directly tied to the Instruction Set Architecture (ISA)?
   Assembly Language
   Operating System (OS)
   High-Level Language (HLL)
   Logic design at the module level
   Semiconductor/VLSI fabrication

Explanation / Answer

Actually ..

1. The precise execution time taken by each type of instruction

2. Main memory access time has been decreasing.

Cost per byte of disk memory has been decreasing.

Power consumption per transistor has been decreasing.

The complexity of circuitry that fits on a single chip has been increasing.

3. Assembly Language

Operating System (OS)

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