This is post is part of set 3 of A Ramble Around CS. We’ll get to processes, threads, and fibers soon, but first we need to talk about how all the things your computer is doing at any given time are organized. What is an Operating System? Early personal computers more or less gave the currently-running program full control of the machine. For instance, a simplified map of the memory of the Apple II computer looks like this: Free RAMText screen dataGraphical screen dataFree RAM(not to...