Computing Essentials 2017
26th Edition
ISBN: 9781259563652
Author: Timothy J O'Leary Professor, Linda I. O'Leary, Daniel O'Leary
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 4, Problem 8MC
A utility
- File History
- Disk Cleanup
- Optimize Drives
- Compactor
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using rapid miner how to creat decison trea for all attribute and another one with delete one or more of them also how i know the weight of each attribute and what that mean in impact the result
Q.1. Architecture performance [10 marks]
Answer
A certain microprocessor requires either 2, 4, or 6 machine cycles to perform various operations.
⚫ (40+g+f)% require 2 machine cycles,
⚫ (30-g) % require 4 machine cycles, and
⚫ (30-f)% require 6 machine cycles.
(a) What is the average number of machine cycles per instruction for this microprocessor?
Answer
(b) What is the clock rate (machine cycles per second) required for this microprocessor to be a
"1000 MIPS" processor?
Answer
(c) Suppose that 35% of the instructions require retrieving an operand from memory which
needs an extra 8 machine cycles. What is the average number of machine cycles per
instruction, including the instructions that fetch operands from memory?
Q.2. Architecture performance [25 marks]
Consider two different implementations, M1 and M2, of the same instruction set. M1 has a clock
rate of 2 GHz and M2 has a clock rate of 3.3 GHz. There are two classes of instructions with the
following CPIs:
Class
A
CPI for M1
CPI for M2
2.f
1.g
B
5
3
C
6
4
Note that the dots in 2 fand 1.g
indicate decimal points and not
multiplication.
a) What are the peak MIPS performances for both machines?
b) Which implementation is faster, if half the instructions executed in a certain program are from
class A, while the rest are divided equally among classes B and C.
c) What speedup factor for the execution of class-A instructions would lead to 20% overall
speedup?
d) What is the maximum possible speedup that can be achieved by only improving the execution
of class-A instructions? Explain why.
e) What is the clock rate required for microprocessor M1 to be a "1000 MIPS" (not peak MIPS)
processor?
Chapter 4 Solutions
Computing Essentials 2017
Ch. 4 - Prob. 1CCCh. 4 - Prob. 2CCCh. 4 - Describe each of the three categories of operating...Ch. 4 - Prob. 4CCCh. 4 - Prob. 5CCCh. 4 - Prob. 6CCCh. 4 - Prob. 7CCCh. 4 - What is Mac OS? What are Mavericks and Yosemite?Ch. 4 - Prob. 9CCCh. 4 - Prob. 10CC
Ch. 4 - Prob. 11CCCh. 4 - Prob. 12CCCh. 4 - Circle the correct answer. 1. What type of...Ch. 4 - Prob. 2MCCh. 4 - Circle the correct answer. 3. The ability to...Ch. 4 - Prob. 4MCCh. 4 - Circle the correct answer. 5. This operating...Ch. 4 - Circle the correct answer. 6. The operating system...Ch. 4 - Prob. 7MCCh. 4 - A utility program that copies all files in the...Ch. 4 - Prob. 9MCCh. 4 - Prob. 10MCCh. 4 - Prob. 1MCh. 4 - On a separate sheet of paper, respond to each...Ch. 4 - Prob. 2OECh. 4 - Prob. 3OECh. 4 - Prob. 4OECh. 4 - Prob. 5OECh. 4 - Prob. 1DCh. 4 - Prob. 2DCh. 4 - Prob. 3DCh. 4 - Prob. 4D
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