Which of the following statements is false?
a. Operating systems are software systems that make using computers more convenient for users, application developers and system administrators.
b. Operating systems provide services that allow each application to execute safely, efficiently and concurrently (i.e., in parallel) with other applications.
c. Popular desktop operating systems include Linux and Windows.
d. Popular mobile operating systems used in smartphones and/or tablets include Google’s Android, Apple’s iOS (for its iPhone, iPad and iPod Touch devices), Windows Phone 8 and Mac OS X.
d. Popular mobile operating systems used in smartphones and/or tablets include Google’s Android, Apple’s iOS (for its iPhone, iPad and iPod Touch devices), Windows Phone 8 and Mac OS X.
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When typing each character of your password, you will see a(n) _____.
A. asterisk (*) only B. circle (•) only C. either a or b D. neither a nor b
How does file protection based on access permissions work? Base your answer on various types of users of a file and the types of operations they can perform. How many permission bits are needed to implement this scheme? Why?
What will be an ideal response?
In the Goal Seek dialog box, the ________ box contains a formula
Fill in the blank(s) with correct word
What is a mechanism used to encrypt communication between two parties?
What will be an ideal response?