- Why system hangs and does not respond?
The CPU only processes one task at a time, and switches among tasks when it is processing multiple tasks. The duration of a switch is extremely short. Therefore, some users might think that the CPU is able to process multiple tasks at the same time. It is the same situation for a system with multi CPUs. The number of task processed at the same time depends on the number of CPUs the computer has. Each CPU switches among the tasks it is responsible for...Learn more