Given: Process Start time End Time A 5 7 B 2 4 C 3 6 D 1 8

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Answer 1

Question

Chapter 8, Problem 8.9HW

Program Plan Intro

Given:

Process Start time End Time
A 5 7
B 2 4
C 3 6
D 1 8

Expert Solution & Answer

Explanation of Solution

Determine whether the pair of processes run concurrently or not:

Diagram for processes AB:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 1

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “B” starts with “2” and end with “4”.
Process “A” and “B” are not concurrent with respect to each other because their corresponding executions do not overlap, that is, process “A” completes before process “B” starts.

Therefore, the processes “AB” are do not run concurrently.

Diagram for processes AC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 2

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “C” starts with “3” and end with “6”.
Process “A” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “A” completes.

Therefore, the processes “AC” are run concurrently.

Diagram for processes AD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 3

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “D” starts with “1” and end with “8”.
Process “A” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “A” completes.

Therefore, the processes “AD” are run concurrently.

Diagram for processes BC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 4

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “C” starts with “3” and end with “6”.
Process “B” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “B” completes.

Therefore, the processes “BC” are run concurrently.

Diagram for processes BD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 5

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “D” starts with “1” and end with “8”.
Process “B” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “B” completes.

Therefore, the processes “BD” are run concurrently.

Diagram for processes CD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 6

Explanation:

In the above timing diagram, process “C” starts with “3” and end with “6”.
Process “D” starts with “1” and end with “8”.
Process “C” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “C” completes.

Therefore, the processes “CD” are run concurrently.

Completed table:

Process pair	Concurrent?
AB	No
AC	Yes
AD	Yes
BC	Yes
BD	Yes
CD	Yes

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Students have asked these similar questions

assume a system has 6 identical resources and N processes competing for them. each process can request at most 2 resources. what is the maximum value of N for the system to be deadlock free?

We are dealing with 6 processes p1;p2; : : : ;p6:(a) Processes p1;p2 in p3 arrive at time 2 ms, respectively. Each of those processesneeds 5 ms of CPU time.(b) Process p4 arrives at time 10 ms and needs 3 ms of CPU time.(c) Processes p5 in p6 arrive at time 19 ms. Process p5 needs 7 ms, while process p6needs 4 ms of CPU time.Scheduling is preemptive, where there process switch takes 1 ms. For the Round-Robinalgorithms with quantum 2 ms illustrate the execution of those processes on a timeline.Then determine the average turnaround time.

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Answer 2

Question

Chapter 8, Problem 8.9HW

Program Plan Intro

Given:

Process Start time End Time
A 5 7
B 2 4
C 3 6
D 1 8

Expert Solution & Answer

Explanation of Solution

Determine whether the pair of processes run concurrently or not:

Diagram for processes AB:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 1

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “B” starts with “2” and end with “4”.
Process “A” and “B” are not concurrent with respect to each other because their corresponding executions do not overlap, that is, process “A” completes before process “B” starts.

Therefore, the processes “AB” are do not run concurrently.

Diagram for processes AC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 2

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “C” starts with “3” and end with “6”.
Process “A” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “A” completes.

Therefore, the processes “AC” are run concurrently.

Diagram for processes AD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 3

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “D” starts with “1” and end with “8”.
Process “A” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “A” completes.

Therefore, the processes “AD” are run concurrently.

Diagram for processes BC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 4

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “C” starts with “3” and end with “6”.
Process “B” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “B” completes.

Therefore, the processes “BC” are run concurrently.

Diagram for processes BD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 5

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “D” starts with “1” and end with “8”.
Process “B” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “B” completes.

Therefore, the processes “BD” are run concurrently.

Diagram for processes CD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 6

Explanation:

In the above timing diagram, process “C” starts with “3” and end with “6”.
Process “D” starts with “1” and end with “8”.
Process “C” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “C” completes.

Therefore, the processes “CD” are run concurrently.

Completed table:

Process pair	Concurrent?
AB	No
AC	Yes
AD	Yes
BC	Yes
BD	Yes
CD	Yes

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Answer 3

Question

Chapter 8, Problem 8.9HW

Program Plan Intro

Given:

Process Start time End Time
A 5 7
B 2 4
C 3 6
D 1 8

Expert Solution & Answer

Explanation of Solution

Determine whether the pair of processes run concurrently or not:

Diagram for processes AB:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 1

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “B” starts with “2” and end with “4”.
Process “A” and “B” are not concurrent with respect to each other because their corresponding executions do not overlap, that is, process “A” completes before process “B” starts.

Therefore, the processes “AB” are do not run concurrently.

Diagram for processes AC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 2

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “C” starts with “3” and end with “6”.
Process “A” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “A” completes.

Therefore, the processes “AC” are run concurrently.

Diagram for processes AD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 3

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “D” starts with “1” and end with “8”.
Process “A” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “A” completes.

Therefore, the processes “AD” are run concurrently.

Diagram for processes BC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 4

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “C” starts with “3” and end with “6”.
Process “B” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “B” completes.

Therefore, the processes “BC” are run concurrently.

Diagram for processes BD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 5

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “D” starts with “1” and end with “8”.
Process “B” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “B” completes.

Therefore, the processes “BD” are run concurrently.

Diagram for processes CD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 6

Explanation:

In the above timing diagram, process “C” starts with “3” and end with “6”.
Process “D” starts with “1” and end with “8”.
Process “C” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “C” completes.

Therefore, the processes “CD” are run concurrently.

Completed table:

Process pair	Concurrent?
AB	No
AC	Yes
AD	Yes
BC	Yes
BD	Yes
CD	Yes

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Answer 4

Question

Chapter 8, Problem 8.9HW

Program Plan Intro

Given:

Process Start time End Time
A 5 7
B 2 4
C 3 6
D 1 8

Expert Solution & Answer

Explanation of Solution

Determine whether the pair of processes run concurrently or not:

Diagram for processes AB:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 1

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “B” starts with “2” and end with “4”.
Process “A” and “B” are not concurrent with respect to each other because their corresponding executions do not overlap, that is, process “A” completes before process “B” starts.

Therefore, the processes “AB” are do not run concurrently.

Diagram for processes AC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 2

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “C” starts with “3” and end with “6”.
Process “A” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “A” completes.

Therefore, the processes “AC” are run concurrently.

Diagram for processes AD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 3

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “D” starts with “1” and end with “8”.
Process “A” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “A” completes.

Therefore, the processes “AD” are run concurrently.

Diagram for processes BC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 4

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “C” starts with “3” and end with “6”.
Process “B” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “B” completes.

Therefore, the processes “BC” are run concurrently.

Diagram for processes BD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 5

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “D” starts with “1” and end with “8”.
Process “B” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “B” completes.

Therefore, the processes “BD” are run concurrently.

Diagram for processes CD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 6

Explanation:

In the above timing diagram, process “C” starts with “3” and end with “6”.
Process “D” starts with “1” and end with “8”.
Process “C” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “C” completes.

Therefore, the processes “CD” are run concurrently.

Completed table:

Process pair	Concurrent?
AB	No
AC	Yes
AD	Yes
BC	Yes
BD	Yes
CD	Yes

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Answer 5

Chapter 8, Problem 8.9HW

Program Plan Intro

Given:

Process Start time End Time
A 5 7
B 2 4
C 3 6
D 1 8

Expert Solution & Answer

Explanation of Solution

Determine whether the pair of processes run concurrently or not:

Diagram for processes AB:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 1

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “B” starts with “2” and end with “4”.
Process “A” and “B” are not concurrent with respect to each other because their corresponding executions do not overlap, that is, process “A” completes before process “B” starts.

Therefore, the processes “AB” are do not run concurrently.

Diagram for processes AC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 2

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “C” starts with “3” and end with “6”.
Process “A” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “A” completes.

Therefore, the processes “AC” are run concurrently.

Diagram for processes AD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 3

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “D” starts with “1” and end with “8”.
Process “A” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “A” completes.

Therefore, the processes “AD” are run concurrently.

Diagram for processes BC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 4

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “C” starts with “3” and end with “6”.
Process “B” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “B” completes.

Therefore, the processes “BC” are run concurrently.

Diagram for processes BD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 5

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “D” starts with “1” and end with “8”.
Process “B” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “B” completes.

Therefore, the processes “BD” are run concurrently.

Diagram for processes CD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 6

Explanation:

In the above timing diagram, process “C” starts with “3” and end with “6”.
Process “D” starts with “1” and end with “8”.
Process “C” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “C” completes.

Therefore, the processes “CD” are run concurrently.

Completed table:

Process pair	Concurrent?
AB	No
AC	Yes
AD	Yes
BC	Yes
BD	Yes
CD	Yes

Answer 6

Chapter 8, Problem 8.9HW

Program Plan Intro

Given:

Process Start time End Time
A 5 7
B 2 4
C 3 6
D 1 8

Expert Solution & Answer

Explanation of Solution

Determine whether the pair of processes run concurrently or not:

Diagram for processes AB:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 1

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “B” starts with “2” and end with “4”.
Process “A” and “B” are not concurrent with respect to each other because their corresponding executions do not overlap, that is, process “A” completes before process “B” starts.

Therefore, the processes “AB” are do not run concurrently.

Diagram for processes AC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 2

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “C” starts with “3” and end with “6”.
Process “A” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “A” completes.

Therefore, the processes “AC” are run concurrently.

Diagram for processes AD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 3

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “D” starts with “1” and end with “8”.
Process “A” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “A” completes.

Therefore, the processes “AD” are run concurrently.

Diagram for processes BC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 4

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “C” starts with “3” and end with “6”.
Process “B” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “B” completes.

Therefore, the processes “BC” are run concurrently.

Diagram for processes BD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 5

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “D” starts with “1” and end with “8”.
Process “B” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “B” completes.

Therefore, the processes “BD” are run concurrently.

Diagram for processes CD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 6

Explanation:

In the above timing diagram, process “C” starts with “3” and end with “6”.
Process “D” starts with “1” and end with “8”.
Process “C” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “C” completes.

Therefore, the processes “CD” are run concurrently.

Completed table:

Process pair	Concurrent?
AB	No
AC	Yes
AD	Yes
BC	Yes
BD	Yes
CD	Yes

Answer 7

Chapter 8, Problem 8.9HW

Program Plan Intro

Given:

Process Start time End Time
A 5 7
B 2 4
C 3 6
D 1 8

Answer 8

Expert Solution & Answer

Explanation of Solution

Determine whether the pair of processes run concurrently or not:

Diagram for processes AB:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 1

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “B” starts with “2” and end with “4”.
Process “A” and “B” are not concurrent with respect to each other because their corresponding executions do not overlap, that is, process “A” completes before process “B” starts.

Therefore, the processes “AB” are do not run concurrently.

Diagram for processes AC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 2

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “C” starts with “3” and end with “6”.
Process “A” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “A” completes.

Therefore, the processes “AC” are run concurrently.

Diagram for processes AD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 3

Explanation:

In the above timing diagram, process “A” starts with “5” and end with “7”.
Process “D” starts with “1” and end with “8”.
Process “A” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “A” completes.

Therefore, the processes “AD” are run concurrently.

Diagram for processes BC:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 4

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “C” starts with “3” and end with “6”.
Process “B” and “C” are concurrent with respect to each other because their corresponding executions overlap, that is, process “C” starts before the process “B” completes.

Therefore, the processes “BC” are run concurrently.

Diagram for processes BD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 5

Explanation:

In the above timing diagram, process “B” starts with “2” and end with “4”.
Process “D” starts with “1” and end with “8”.
Process “B” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “B” completes.

Therefore, the processes “BD” are run concurrently.

Diagram for processes CD:

Computer Systems: A Programmer's Perspective (3rd Edition), Chapter 8, Problem 8.9HW , additional homework tip 6

Explanation:

In the above timing diagram, process “C” starts with “3” and end with “6”.
Process “D” starts with “1” and end with “8”.
Process “C” and “D” are concurrent with respect to each other because their corresponding executions overlap, that is, process “D” starts before the process “C” completes.

Therefore, the processes “CD” are run concurrently.

Completed table: