Complex sentence: Apple Computer was officially incorporated by Steve Jobs, Steve Wozniak and "Mike" Markkula who co-signed a bank loan for $250,000, and the three formed Apple Computer on April 1,1976.
Split into simpler sentences: Apple Computer was officially incorporated by Steve Jobs, Steve Wozniak, and "Mike" Markkula who co-signed a bank loan for $250,000. They formed Apple Computer on April 1,1976.