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21. 

In memory systems, boundary registers
A. are used for temporary program variable storage
B. are only necessary with fixed partitions
C. track page boundaries
D. track the beginning and ending of programs
E. None of the above
22. 

Which of the following is true for machine language.
A. Repeated execution of program segments
B. Depicting flow of data in a system
C. A sequence of instructions which, when followed properly, solves a problem
D. the language which communicates with the computer using only the binary digits 1 and 0.
E. None of the above
23. 

Which of the following is not applications software?
A. Word processing
B. Spreadsheet
C. UNIX
D. Desktop publishing
E. None of the above
24. 

Scissoring enables
A. a part of data to be displayed
B. entire data to be displayed
C. full data display on full area of screen
D. no data to be displayed
E. None of the above
25. 

A relocate program form is one which
A. cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation.
B. consists of a program and relevant information for its relocation.
C. can itself performs the relocation of its address-sensitive portions.
D. all of the above
E. None of the above