what is a task/thread/process? where do I start.... a processor naturally has one thread of control, i.e. it executes instructions sequentially. To simulate m

what is a task/thread/process? where do I start.... a processor naturally has one thread of control, i.e. it executes instructions sequentially. To simulate multiple things happening at a time a context-switcher periodically saves and restores the current processor state and switches to another sequence. Each sequence is a thread-of-control... commonly known as a thread (or task, or process). ...and this isn't embedded-specific, just computer-science specific.