Steve Wozniak tested his first prototype of Apple I computer.

The Apple Computer 1, originally released as the Apple Computer and known later as the Apple I, or Apple-1, is an 8-bit desktop computer released by the Apple Computer Company (now Apple Inc.) in 1976. It was designed by Steve Wozniak. The idea of selling the computer came from Wozniak's friend and co-founder Steve Jobs. The Apple I was Apple's first product, and to finance its creation, Jobs sold his only motorized means of transportation, a VW Microbus, for a few hundred dollars (Wozniak later said that Jobs planned instead to use his bicycle to get around), and Wozniak sold his HP-65 calculator for $500. Wozniak demonstrated the first prototype in July 1976 at the Homebrew Computer Club in Palo Alto, California.Production was discontinued on September 30, 1977, after the June 10, 1977 introduction of its successor, the Apple II, which Byte magazine referred to as part of the "1977 Trinity" of personal computing (along with the PET 2001 from Commodore Business Machines and the TRS-80 Model I from Tandy Corporation).

Stephen Gary Wozniak (; born August 11, 1950), also known by his nickname "Woz", is an American electronics engineer, computer programmer, philanthropist, and technology entrepreneur. In 1976, with business partner Steve Jobs, he co-founded Apple Inc., which later became the world's largest information technology company by revenue and the largest company in the world by market capitalization. Through his work at Apple in the 1970s and 1980s, he is widely recognized as one of the prominent pioneers of the personal-computer revolution.

In 1975, Wozniak started developing the Apple I: 150  into the computer that launched Apple when he and Jobs first began marketing it the following year. He primarily designed the Apple II, introduced in 1977, known as one of the first highly successful mass-produced microcomputers, while Jobs oversaw the development of its foam-molded plastic case and early Apple employee Rod Holt developed its switching power supply. With software engineer Jef Raskin, Wozniak had a major influence over the initial development of the original Apple Macintosh concepts from 1979 to 1981, when Jobs took over the project following Wozniak's brief departure from the company due to a traumatic airplane accident. After permanently leaving Apple in 1985, Wozniak founded CL 9 and created the first programmable universal remote, released in 1987. He then pursued several other businesses and philanthropic ventures throughout his career, focusing largely on technology in K–12 schools.As of November 2019, Wozniak has remained an employee of Apple in a ceremonial capacity since stepping down in 1985. In recent years, he has helped fund multiple entrepreneurial efforts dealing in areas such as telecommunications, flash memory, technology and pop culture conventions, ecology, satellites, technical education and more.