__________ is an example of a proprietary operating system.

a. UNIX
b. Macintosh OS X
c. Linux
d. All of the above are proprietary operating systems


b. Macintosh OS X

Computer Science & Information Technology

You might also like to view...

Drivers are concerned with the mileage obtained by their automobiles. One driver has kept track of several tankfuls of gasoline by recording miles driven and gallons used for each tankful. Develop a C++ program that uses a while statement to input the miles driven and gal- lons used for each tankful. The program should calculate and display the miles per gallon obtained for each tankful and

print the combined miles per gallon obtained for all tankfuls up to this point.c Enter miles driven (-1 to quit): 287 Enter gallons used: 13 MPG this tankful: 22.076923 Total MPG: 22.076923 Enter miles driven (-1 to quit): 200 Enter gallons used: 10 MPG this tankful: 20.000000 Total MPG: 21.173913 Enter the miles driven (-1 to quit): 120 Enter gallons used: 5 MPG this tankful: 24.000000 Total MPG: 21.678571 Enter the miles used (-1 to quit): -1

Computer Science & Information Technology

In Excel 2016, a previous version of an Excel file is considered to be a non-native file

Indicate whether the statement is true or false.

Computer Science & Information Technology

A ____ is a server folder that is associated with a user's account and that is a designated workspace for the user to store files.

A. primary folder B. profile directory C. personal directory D. home directory

Computer Science & Information Technology

A low-level language has a low level of ___________ because it includes commands specific to a particular CPU or microprocessor family.?

A. ?flow control B. ?abstraction C. ?syntax D. ?iteration

Computer Science & Information Technology