engineering computer science MCQ #196

If a computer system has a cache memory of 256KB and a main memory of 4GB, what is the number of bits required to address the main memory?

engineering computer science MCQ #196

  1. Question 1

    Q1. If a computer system has a cache memory of 256KB and a main memory of 4GB, what is the number of bits required to address the main memory?

    • A) 32 bits
    • B) 30 bits
    • C) 28 bits
    • D) 24 bits

    Answer: 32 bits

    Explanation: Number of bits required to address main memory = log2(main memory size) = log2(4GB) = log2(2³2) = 32