SURVEY OF OPERATING SYSTEMS
6th Edition
ISBN: 9781260096002
Author: Holcombe
Publisher: RENT MCG
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Chapter 2, Problem 1EQ
Explanation of Solution
Requirement of security in automatic login:
Automatic login represents the action where password to unlock the system is automatically displayed but it is hidden, and characters of password are not displayed. User can set auto login option to computer.
- The user sets such option once and password is displayed during every login in the computer.
- Such option allows computer to start quickly and reduces user work.
- There are some reasons where such option is good but it is not secure.
- The computers that contain confidential information and the government agencies should avoid using this option. Because, it requires high level of security.
- There are several steps to set up automatic system login depending on the type of
operating system installed in computer...
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1.[30 pts] Answer the following questions:
a. [10 pts] Write a Boolean equation in sum-of-products canonical form for the truth table
shown below:
A
B
C
Y
0
0
0
1
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
1
1
0
1
0
1
1
0
1
1
1
1
0
a. [10 pts] Minimize the Boolean equation you obtained in (a).
b. [10 pts] Implement, using Logisim, the simplified logic circuit. Include an image of
the circuit in your report.
2. [20 pts] Student A B will enjoy his picnic on sunny days that have no ants. He
will also enjoy his picnic any day he sees a hummingbird, as well as on days where
there are ants and ladybugs.
a. Write a Boolean equation for his enjoyment (E) in terms of sun (S), ants
(A), hummingbirds (H), and ladybugs (L).
b. Implement in Logisim, the logic circuit of E function. Use the Circuit Analysis tool in
Logisim to view the expression, include an image of the expression generated by Logisim
in your report.
3.[20 pts] Find the minimum equivalent circuit for the one shown below (show your work):
DAB
C…
Chapter 2 Solutions
SURVEY OF OPERATING SYSTEMS
Ch. 2 - Prob. 1KTQCh. 2 - Prob. 2KTQCh. 2 - Prob. 3KTQCh. 2 - Prob. 4KTQCh. 2 - Prob. 5KTQCh. 2 - Prob. 6KTQCh. 2 - Prob. 7KTQCh. 2 - Prob. 8KTQCh. 2 - Prob. 9KTQCh. 2 - Prob. 10KTQ
Ch. 2 - Prob. 1MCQCh. 2 - This type of annoyance appears uninvited in a...Ch. 2 - With this Windows feature turned on (as it is by...Ch. 2 - Prob. 4MCQCh. 2 - Prob. 5MCQCh. 2 - Prob. 6MCQCh. 2 - Prob. 7MCQCh. 2 - Prob. 8MCQCh. 2 - Prob. 9MCQCh. 2 - Prob. 10MCQCh. 2 - Prob. 11MCQCh. 2 - Prob. 12MCQCh. 2 - Prob. 13MCQCh. 2 - Prob. 14MCQCh. 2 - Prob. 15MCQCh. 2 - Prob. 1EQCh. 2 - Consider the following statement: User Account...Ch. 2 - Why should you disable the Guest account?Ch. 2 - Prob. 4EQCh. 2 - Prob. 5EQ
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