Apple III



When you produce the world's most popular computer line, and you decide to introduce its successor, just how bad can you fuck it up? The whole Apple III story was a disaster. Design errors, high failure rate, constant overheating problems, limited backwards compatibility, poor expandability, high cost... and the fact that it was still not as advanced as the new hotness (IBM's PC) that it was supposed to counter. Only its operating system was truly a step up from the Apple II, but its modern features were ported back anyway. The III was soon discontinued, while the II continued for a decade more.