The Apple II (stylized as apple ][) is an 8-bit home computer, one of the first highly successful mass-produced microcomputer products, designed primarily by Steve Wozniak (Steve Jobs oversaw the development of the Apple II's unusual case and Rod Holt developed the unique power supply). It was introduced in 1977 at the West Coast Computer Faire by Jobs and was the first consumer product sold by Apple Computer. It is the first model in a series of computers which were produced until Apple IIe production ceased in November 1993.

The Apple II Plus (stylized as Apple ][+) is the second model of the Apple II series of personal computers produced by Apple Computer, Inc.  It was sold new from June 1979 to December 1982.