Disk Operating System (DOS) Question:
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The primary purpose of an operating system is ..... .

a. To make the most efficient use of the computer hardware
b. To allow people to use the computer
c. To keep systems programmers employed
d. To make computers easier to use

Answer:

a. To make the most efficient use of the computer hardware

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..... is the layer of a computer system between the hardware and the user program.

a. Operating environment
b. Operating system
c. System environment
d. None		..... transforms one interface into another interface.

a. Program
b. Software
c. Data
d. None