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16. 

A development stategy whereby the executive control modules of a system are coded and tested first, is known as
A. Bottom-up development
B. Top-down development
C. Left-Right development
D. All of the above
17. 

A non-relocatable program 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 perform the relocation of its address-sensitive portions
D. All Of the above
18. 

Multiprogramming was made possible by
A. input/output units that operate independently of the CPU
B. operating systems
C. both (a) and (b)
D. neither (a) nor (b)
19. 

An Interpreter is
A. is a program that appears to execute a source program as if it were machine language
B. a program that automate the translation of assembly language into machine language
C. program that accepts a program written in a high level language and produces an object program
D. a program that places programs into memory and prepares them for execution
20. 

Systems software is a program that directs the overall operation of the computer, facilitates its use and interacts with the users. What are the different types of this software?
A. Operating system
B. Languages
C. Utilities
D. All of the above