quiz1_sol - ODU Computer Science

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CPS2236
Answers to Quiz-1
1. Correct answer: A. Mac OS X, because it only runs on Apple computers.
B is incorrect because Windows Vista is designed for PCs.
C is incorrect because Windows NT is designed for PCs.
D is incorrect because Red Hat Linux comes in a version for PCs.
E is incorrect because Windows XP is designed for PCs.
2. Correct answer: B. Integrated circuit (IC) is a small electronic component made up of
transistors and other miniaturized parts.
A is incorrect because a peripheral is a device connected to a computer.
C is incorrect because a handheld is a type of microcomputer.
D is incorrect because a mouse is a peripheral device.
E is incorrect because a vacuum tube is a component that the integrated circuit replaced.
3. Correct answer: E. Lotus 1-2-3, an electronic spreadsheet, was the “killer app” application
program that made the IBM PC a must-have business tool.
A is incorrect because Microsoft Word was a word processor that evolved with the PC, but
did not have the “killer app” effect of Lotus 1-2-3.
B is incorrect because, although VisiCalc was a very important application for users of the
personal computers that predated the IBM PC, and was the obvious model for Lotus 1-2-3, it
did not play the role that Lotus 1-2-3 did.
C is incorrect because BASIC is a programming language, and although the IBM PC
included a BASIC interpreter in ROM, it was not a compelling must-have business tool.
D is incorrect because PC-DOS is an OS and not an application, and it alone could not play
the role that Lotus 1-2-3 did.
4. Correct answer: E. Windows Server 2008.
A is incorrect because MS-DOS is a desktop operating system.
B is incorrect because Mac OS X is a desktop operating system (available in both desktop
and server versions).
C is incorrect because Windows 7 is a desktop operating system.
D is incorrect because Linux is a desktop operating system (available in both desktop and
server versions).
5. Correct answer: C. A keyboard is a computer input device.
A is incorrect because a display is an output device.
B is incorrect because a printer is an output device.
D is incorrect because RAM is a form of computer memory used for temporary storage.
E is incorrect because ROM is a nonvolatile form of computer memory used to store
programs.
6. Correct answer: B. A file and print server is a networked computer that allows end users to
save and access files stored on it.
A is incorrect because the purpose of a desktop computer on a network is usually to allow
users to access network servers.
C is incorrect because a hand-held computer does not play the role described in the question.
D is incorrect because a laptop does not usually play the role described in the question.
E is incorrect because a PC does not usually play the role described in the question.
7. Correct answer: D. Speed and the ability to support real-time application programs.
A is incorrect because a GUI and the ability to run great games is not a characteristic of realtime operating systems.
B is incorrect because, although many real-time OSs are single-tasking, this is not necessarily
a characteristic of real-time operating systems.
C is incorrect because large and fast are not characteristics of real-time operating systems.
E is incorrect because running on a terminal server is not a characteristic of real-time
operating systems.
8. Correct answer: B. Mac OS X is built on NextStep, an OS based on the UNIX kernel.
A is incorrect because while Linux is UNIX-like, it is not the basis for Mac OS X.).
C is incorrect because DOS is a very old single-tasking OS that is not the basis for Mac OS
X.
D is incorrect because Windows is not the OS on which Mac OS X is built.
E is incorrect because BASIC is a very simple programming language and not an operating
system.
9. Correct answer: D. A government agency was a typical end-user in the 1950s.
A is incorrect because there were no computer gamers in the 1950s.
B is incorrect because a medical doctor would not have been an end user in the early 1950s.
C is incorrect because a politician would not have been an end user in the early 1950s.
E is incorrect because a secretary would not have been an end user in the early 1950s.
10. Correct answer: E. An operating system is to a computer as a manager is to a department.
A is incorrect because “salesman” does not describe the role of an operating system in a
department.
B is incorrect because “spreadsheet” does not describe the role of an operating system. It
describes a type of application.
C is incorrect because “steering wheel” does not describe the role of an operating system.
D is incorrect because “ignition” does not describe the role of an operating system.
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