Essentials of Computer Organization and Architecture, 5th Edition

Answers and Hints for Selected Exercises

Chapter 1

•   1. Between hardware and software, one provides more speed, the other provides more flexibility. (Which one is which?) Hardware and software are related through the Principle of Equivalence of Hardware and Software. Can one solve a problem where the other cannot?

•   3. One million, or 10⁶

• 10. 0.75 micron

Chapter 2

•   1. a) 121222₃

  • b) 10202₅

  • c) 4266₇

  • d) 6030₉

•   7. a) 11010.11001

  • b) 11000010.00001

  • c) 100101010.110011

  • d) 10000.000111

• 16. a) Signed-magnitude: 01001101One’s complement: 01001101Two’s complement: 01001101 Excess-127: 11001100

  • b) Signed-magnitude: 10101010One’s complement: 11010101Two’s complement: 11010110 Excess-127: 1010101

• 28. a) Smallest negative: 100000 (−31) ...