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: 01001101
One’s complement: 01001101
Two’s complement: 01001101 Excess-127: 11001100
b) Signed-magnitude: 10101010
One’s complement: 11010101
Two’s complement: 11010110 Excess-127: 1010101
28. a) Smallest negative: 100000 (–31) Largest positive: ...
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