Operating System (OS)
You should choose sleep option when

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

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Operating System (OS)
A Processor

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

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Operating System (OS)
The Register - to - Register (RR) instructions

All of these
None of these
which perform an operation on a register operand and an operand which is located in the main store, generally leaving the result in the register, except in the case of store operation when it is also
have both their operands in the main store.
which perform indicated operations on two fast registers of the machine and leave the result in one of the registers.

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