Performance of microkernel vs monolithic kernel. As is always the answer (or at least the preface) to performance-related questions: know your problem domain, run comparative benchmarks, and remember what premature optimization is.
A summary of the difference between contactors, motor starters, relays and circuit breakers. Switches, circuit breakers, and contactors are used to control what parts of an electrical system are energized or de-energized. Fuses are used to protect the electrical system when something goes wrong, and can isolate the faulted parts from the normal parts.
Fuses operate within an electrical circuit to monitor the amount of amperage traveling the circuit. Electronics from vehicle computers to home stereos use different types of fuses to protect the equipment. The fuse has a metal point that melts or breaks when the set number of amps is exceeded. Two main types of interrupt fuses are MDL and AGC.