Special software to create a job queue is called a
A. Drive
B. Spooler
C. Interpreter
D. Linkage editor
E. None of the above
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All the time a computer is switched on, its operating system software has to stay in
A. main storage
B. primary storage
C. floppy disk
D. disk drive
E. None of the above
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Can you name of the major Operating System used in computers?
A. MS DOS
B. OS/2
C. UNIX
D. All of the above
E. None of the above
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Which of the following is not an advantage of multiprogramming?
A. increased throughput
B. shorter response time
C. decreased operating-system overhead
D. ability to assign priorities to jobs
E. None of the above
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Virtual Memory
A. is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.
B. consists of those addresses that may be generated by a processor during execution of a computation.
C. is a method of allocating processor time.
D. allows multiple programs to reside in separate areas of core at the time.
E. None of the above
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In a magnetic disk, data is recorded in a set of concentric tracks which are subdivided into
A. periods
B. sectors
C. zones
D. groups
E. None of the above
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The total time to prepare a disk drive mechanism for a block of data to be read from it is
A. latency
B. latency plus transmission time
C. latency plus seek time
D. latency plus seek time plus transmission time
E. None of the above
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Part of a program where the shared memory is accessed and which should be executed invisibly is called
A. semaphores
B. directory
C. critical section
D. mutual exclusion
E. None of the above
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Indicate which, of the following, is not true about Nassi-Shneiderman charts
A. These charts are type of graphical design tool
B. These charts cannot represent CASE constructs
C. These charts can represent three fundamental control structures
D. All of the above
E. None of the above
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What is the name of the operating system that reads and reacts in terms of actual time.
A. Batch system
B. Quick response system
C. Real time system
D. Time sharing system
E. None of the above
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An incremental backup
A. should be done each month
B. uses more tapes
C. saves all files
D. saves only files that have recently changed
E. None of the above
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The powerful text editor called PC-Write can be used by anybody by paying a small fee. Such programs are called
A. Software
B. Shareware
C. Firmware
D. Mindware
E. None of the above
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The disadvantages of "Compile and Go" loading scheme is (are):
A. a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program.
B. it is necessary to retranslate the user's program deck every time it is run.
C. it is very difficult to handle multiple segments, especially if the source programs are in different languages, and to produce orderly modular programs.
D. all of the above
E. None of the above
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The operating system of a computer serves as a software interface between the user and
A. hardware
B. peripheral
C. memory
D. screen
E. None of the above
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Which of the following statement is true.
A. The LRU algorithm pages out pages that have been used recently
B. Thrashing is a natural consequence of virtual memory systems.
C. Seek analysis is used for analysing control-unit busy problems.
D. All of the above
E. None of the above
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Which of the following is a phase of a compilation process
A. Lexical analysis
B. Code generation
C. Both of the above
D. Static analysis
E. None of the above
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Which are the most important features of Microsoft Windows program?
A. Windows
B. Pull-down menus
C. Icons
D. All of the above
E. None of the above
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Which of the following system program forgoes the production of object code to generate absolute machine code and load it into the physical main storage location from which it will be executed immediately upon completion of the assembly?
A. two pass assembler
B. load-and-go assembler
C. macroprocessor
D. compiler
E. None of the above
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Virtual memory is
A. simple to implement
B. used in all major commercial operating systems
C. less efficient in utilization of memory
D. useful when fast I/O devices are not available
E. None of the above
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Object code
A. is ready to execute
B. is the output of compilers, but not assemblers
C. must be "loaded" before execution
D. must be rewritten before execution
E. None of the above
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