At the time PC's came to market, High Fidelity music systems still were built from components such as preamps, amplifiers, turntables, FM tuners, tape decks, CD

At the time PC's came to market, High Fidelity music systems still were built from components such as preamps, amplifiers, turntables, FM tuners, tape decks, CD players, and speakers. A PC was similarly a collection of base unit, monitor, printer, keyboard, mouse, and other components connected via interface cards plugged into a standard bus. Memory was also originally on cards plugged into the bus.