Hi

I would like help finding out these answers please.

Where are the REX device registers physically located? Select one: a. In the CPU b. In main memory (RAM). c. In the controller d. In the program's data segment of the relevant VO device. Which statement is false? Select one: a. Parallel lVO is always faster than serial VO b. With Parallel VO, multiple bits are transferred at the same time. c. Polling is wasteful of CPU cycles if the VO device is considerably slower than the CPU. d. The WRAMP CPU uses memory-mapped I/O to communicate with the outside world Which WRAMP assembly instruction can be used to invert (flip) the bits of a register? Select one a. xor b. not c. and d. or