Quite a few embedded systems won't function without watchdog clocks, but why is that the case?

Explain the concept of pipelining in computer architecture and provide a real-world example of how it can improve performance.

Many ideas have been put out for a processor that can decode encrypted data and system instructions and then execute those instructions. By the processor, the responses are encrypted. Is using this specific CPU advantageous? How can one get such astounding performance and efficiency?

Many approaches have been presented for a processor that can decode encrypted data and system instructions as well as execute instructions on the decoded data and executed system instructions. The processor will encrypt the provided resuits. Is there a special advantage to using a CPU like this? What are the system requirements to attain such high levels of performance and efficiency?