The Apple III (styled as apple ///) is a business-oriented personal computer produced by Apple Computer and released in 1980. Running the Apple SOS operating system, it was intended as the successor to the Apple II, but was largely considered a failure in the market.

The Apple III, stylized as apple /// and codenamed "Sara", was a personal computer from Apple Computer that was targeted towards business users. Development on the Apple III began in late 1978 with Wendell Sander as the lead engineer.

Despite initially being billed as a high-performance business machine and capable of running Apple II software, the Apple III quickly became known as a failure both commercially and technically.

The Apple III has 4 internal expansion slots that are compatible with Apple II cards, and also has Apple II Plus emulation built-in. The Apple III chassis is a single, heavy piece of aluminum, with the power supply totally enclosed in the left section, with no ventilation what-so-ever.

The Apple III was meant to be Apple’s bold entry into the business market; it ended as Apple’s first commercial failure and put the company into financial uncertainty. It was also responsible for sprouting both the Lisa and Macintosh projects, efforts that would save Apple.

In this tutorial, we will take an in-depth look at its hardware and understand why it was Apple’s first failure. There were three revisions of the Apple III. The first one presented an...

It was the first Apple to include a built-in 5.25" disk drive, and hi-res graphics built-in to the motherboard. It was designed to be Apple's business offering, but sold very poorly. It sold initially for between $4,340 and $7,800, depending on the configuration.

Dec 1, 2024 · The new, slightly improved Apple III. The Apple III revised edition, which today’s “Today in Apple history” commemorates, launched in December 1981. It included upgraded specs and new...

Jul 14, 2007 · The Apple III (often rendered as Apple ///) was a personal computer aimed at business users, manufactured and sold by Apple from May, 1980 until its discontinuation on April 24, 1984. Its predecessor, the better-known Apple II, …

The Apple III was designed to be a business machine. It was partly compatible with the Apple II (thanks to a few options in the operating system). It used a powerful memory management system and worked under SOS (Sophisticated Operating System), which was a great, device-independent, operating system.