Introduction To Computing Systems
3rd Edition
ISBN: 9781260150537
Author: PATT, Yale N., Patel, Sanjay J.
Publisher: Mcgraw-hill,
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Chapter 1, Problem 17E
Program Plan Intro
Instruction Set Architecture (ISA)
- An instruction set architecture is an abstract model of a computer.
- It is also referred to as architecture or computer architecture.
- An ISA defines the supported data types, registers, the hardware support for managing main memory fundamental features and the input/output model of a family of implementations of ISA.
Microarchitecture
- Microarchitecture is also known as computer organization is the way in which a given ISA is implemented.
- It can be implemented with different microarchitectures.
- Computer architecture is a combination of both Instruction Set Architecture (ISA) and Microarchitecture.
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Question D.4: FIFO Page Replacement
Consider the following page reference string:
e, c, b, e, a, g, d, c, e, g, d, a
Considering 4 frames, fill in the following table and then answer how many page faults would occur with the
FIFO page replacement algorithm.
RS: reference string; FO: frame 0, F1: frame 1, etc.
Hint: all frames are initially empty, so your first unique pages will all cost one fault each.
Time
1234567891011
12
RS
e
cb
e agd ce g d
a
FO
F1
F2
F3
Page fault?
b) Total # page faults:
c) Briefly (1-2 sentences) explain Belady's Anomaly that can occur in FIFO Page Replacement.
Consider a system that uses a fixed-partition scheme, with equal partitions of size 2" bytes, and the main
memory has 2¹8 bytes. A process table is maintained with a pointer to the resident partition for each resident
process. How many bits are required for the pointer in the process table? Show all your steps.
Use the same semaphore notation shown above to describe how we can ensure the execution order of the
following process execution graph:
P6
P2
P7
P1
P3
P4
P5
Use all of the following semaphores in your answer:
s1=0; s2=0; s3=0; s4=0; s5=0; s6=0;
Chapter 1 Solutions
Introduction To Computing Systems
Ch. 1 - Prob. 1ECh. 1 - Can a higher-level programming language instruct a...Ch. 1 - What difficulty with analog computers encourages...Ch. 1 - Prob. 4ECh. 1 - Prob. 6ECh. 1 - Prob. 7ECh. 1 - John said, “I saw the man in the park with a...Ch. 1 - Are natural languages capable of expressing...Ch. 1 - Name three characteristics of algorithms. Briefly...Ch. 1 - Prob. 11E
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