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76.translator which reads an entire programme written in high level language and converts it into machine language code is:
(D)system software

77.Which of the following system software does the job of merging the records from two files into one ?
(A)Security software
(B)Utility program
(C)Networking software
(D)Documentation system

78.Which of the following types of software should you if you often need to create, edit and print document ?
(A)Spread sheet
(B)Desktop publishing
(D)Work processing

79.The computer system of a computer serves as a software interface between the user and:

80.what is the name of the technique in Which the operating system of a computer executes several programs concurrently by switching back and forth between them ?