What is not a main function of an operating system?

a. Provide the users with an extended (virtual) machine
b. Manage the I/O devices
c. Provide user interfaces
d. Support virtual memory

Answer: c. Provide user interfaces

Computer Science & Information Technology

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Introduced in Windows Server 2008 R2 and continued in Windows Server 2012 and Windows Server 2012 R2 is the concept of location-________default printer settings. Users with mobile computers running Windows 7 Professional, Enterprise, or Ultimate; Windows 8 or 8.1 Pro; or Enterprise can configure a different default printer according to the network to which they are connected

Fill in the blank(s) with correct word

Computer Science & Information Technology

____ mode is always used when creating shadows and drop shadows: shadows in nature are always transparent.

A. Skew B. Multiply C. Opacity D. Shadow

Computer Science & Information Technology