Disk Operating System (DOS) Question:
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.....is the first program run on a computer when the computer boots up.

a. System software
b. Operating system
c. System operations
d. None


b. Operating system

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Multiprogramming system:

a. Are easier to develop than single programming system
b. Execute each job faster
c. Execute more jobs in the same time period
d. Are used only one large mainframe computers
..... interface consists of things like program counter, registers, interrupts and terminals

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