It has been a very long time since computers have executed code in a simple, linear manner. Even back in the 1950s, most used a system of interrupts or traps to handle errors, input/output, and other features, although those weren’t considered to be multitasking. In computers with a single processor core, multitasking was a way of cheating to give the impression that the processor was doing several things at once, when in fact all it was doing was switching rapidly between two or more different ...