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

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
which perform indicated operations on two fast registers of the machine and leave the result in one of the registers.
None of these
All of these
have both their operands in the main store.

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Operating System (OS)
The advantage of a command processor running only built-in commands is:

the command set being common across different hardware configurations
users can create system programs and run them as commands
None of these
flexibility to the users in running lists of commands by simply collecting them in named batch command files
the processing is much faster than would other-wise be the case when user defined commands are used

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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 data are accessed sequentially
the address of the data is generated by the CPU
None of these

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