Another key to success was the software: the Apple II was chosen by entrepreneurs Daniel Bricklin and Bob Frankston to be the desktop platform for the first "killer app" of the business world — the VisiCalc spreadsheet program. That created a phenomenal business market for the Apple II; and the corporate presence attracted many software and hardware developers to the machine.

The rise of Apple Computer is one of America's great success stories. Based on the business and technical savvy of Steve Jobs and Steve Wozniak, and the marketing expertise of Mike Markkula, Apple dominated the personal computer industry between 1977 and 1983.

More than 2 million Apple II's were shipped at a price of $970 for the 4KB model.

The Commodore PET (Personal Electronic Transactor) – the first of several personal computers released in 1977 – came fully assembled and was straightforward to operate, with either 4 or 8 kilobytes of memory, a built-in cassette drive, and a calculator "chiclet keyboard". It was followed by the VIC-20, which had a full typewriter keyboard, color and sound, 3.5K of user accessible memory, and a much lower price than Apple's offerings.