Operating System (OS)
The FIFO algorithm

executes first the job that first entered the queue
execute first the job that has been in the queue the longest
executes first the job that last entered the queue
None of these
executes first the job with the least processor needs

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Operating System (OS)
Trojan-Horse programs

usually are immediately discovered
None of these
are legitimate programs that allow unauthorized access
do not usually work
are hidden programs that do not show up on the system

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Operating System (OS)
A Processor

is a device that performs a sequence of operations specified by instructions in memory.
is the device where information is stored
is a sequence of instructions
None of these
is typically characterized by interactive processing and time of the CPU

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