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

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

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Operating System (OS)
The Memory Buffer Register (MBR)

None of these
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
contains the address of the memory location that is to be read from or stored into.
is a hardware memory device which denotes the location of the current instruction being executed.
contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".

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Operating System (OS)
The disadvantages of "Compile and Go" loading scheme is (are):

a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program.
it is necessary to retranslate the user's program deck every time it is run.
None of these
it is very difficult to handle multiple segments, especially if the source programs are in different languages, and to produce orderly modular programs.
All of these

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Operating System (OS)
You should choose sleep option when

You are leaving for a very short time and want to resume you work shortly
You finish working and going to bed
When computer gets hanged frequently. Let it sleep for some time
The computer is tired after working for the whole day

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