The Apple III 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 series, but was largely considered a failure in the market. It was designed to provide key features business users wanted in a personal computer: a true typewriter-style upper/lowercase keyboard and an 80-column display.
Apple III
An advertisement for access to health information through the Apple III
An Apple III Plus
Apple III Plus showing the RFI shield over the floppy drive and the cast aluminum case
The Apple II series is a family of home computers, one of the first highly successful mass-produced microcomputer products, designed primarily by Steve Wozniak, manufactured by Apple Computer, and launched in 1977 with the original Apple II.
The 1977 Apple II, shown here with two Disk II floppy disk drives and a 1980s-era Apple Monitor II
An Apple II Europlus
An Apple IIe with disk drive and monitor
An Apple IIc with monitor