Operating System (OS)
Which of the following is not a characteristic of a daisy chaining priority control scheme?

the failure of one device may affect other devices on the chain
the number of control lines is independent of the number of devices on the chain
None of these
priority is programmable
it is relatively easy to add more devices to the chain

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

All of these
have both their operands in the main store.
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
which perform indicated operations on two fast registers of the machine and leave the result in one of the registers.

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