Computer Awareness part Four

16. The operating system controls access to the processor by assigning a(n)
____________ to each task requiring the processor’s attention.
(A) CPU
(B) slice of time
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(C) stack
(D) event
Ans : (B)
17. The blocks of code, included in the operating system, that software applications
interact with are known as:
(A) application programming interfaces (APIs).
(B) complimentary metal-oxide conductors (CMOS).
(C) device drivers.
(D) bootstrap loaders.
Ans : (A)
18. MS-DOS is a ____________ operating system.
(A) point-and-click
(B) user-friendly
(C) command-driven
(D) Mac
Ans : (C)
19. An interrupt handler is a(n):
(A) location in memory that keeps track of recently generated interrupts.
(B) peripheral device.
(C) utility program.
(D) special numeric code that indicates the priority of a request.
Ans : (D)
20. A spooler is a(n):
(A) location in memory that maintains the contents of a document until it prints out.
(B) print job.
(C) program that coordinates the print jobs that are waiting to print.
(D) message sent from the printer to the operating system when a print job is completed.
Ans : (C)