1. In what ways are hardware and software different? In what ways are they the same? 3. By what order of magnitude is something that runs in nanoseconds faster than something that runs in milliseconds? 5. Makers of tablet computers continually work within narrow constraints on cost, power consumption, weight, and battery life. Describe what you feel would be the perfect tablet computer. How large would the screen be? Would you rather have a longer-lasting battery, even if it means having a heavier unit? How heavy would be too heavy? Would you rather have low cost or fast performance? Should the battery be consumer-replaceable? 7. Respond to the idea presented in Section 1.5: If invented today, what name do you think would be given to the computer? Give at least one good reason for your answer. 9. Would it be possible to fool people with an automaton like the Mechanical Turk today? If you were to try to create a Turk today, how would it differ from the eighteenth-century version? 11. What circumstances helped the IBM PC become so successful? 13. In the von Neumann model, explain the purpose of the: 1. a) processing unit 2. b) program counter 15. Explain why modern computers consist of multiple levels of virtual machines. 17. What are the challenges facing organizations that wish to move to a cloud platform? What are the risks and benefits? 19. Explain what it means to "fetch" an instruction. 21. List and describe some common uses and some not-so-common uses of computers in business and other sectors of society. 23. What are the limitations of Moore's Law? Why can't this law hold forever? Explain. 25. Do you share Dr. Ferrucci's opinion that all computers will become like Watson someday? If you had a tablet-sized Watson, what would you do with it