Operating System (OS)
Which of the following is true for machine language.

None of these
the language which communicates with the computer using only the binary digits 1 and 0.
Depicting flow of data in a system
Repeated execution of program segments
A sequence of instructions which, when followed properly, solves a problem

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Operating System (OS)
Semaphores

are used to do I/O
synchronize critical resources to prevent deadlock
None of these
are used for memory management
synchronize critical resources to prevent contention

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Operating System (OS)
Which of the following refers to the associative memory?

there is no need for an address i.e. the data is used as an address
the address of the data is supplied by the users
the address of the data is generated by the CPU
the data are accessed sequentially
None of these

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