Osborne Computer Corporation was founded by Adam Osborne, Lee Felsenstein, and Jack Melchor in 1981. Armed with Osborne's ideas inspired by Alan Kay's Notetaker at Xerox PARC, the engineering prowess of Felsenstein, the software contributions of Frank, and financial backing from Melchor, OCC introduced the first commercially-successful portable personal computer in January 1981, with little or no competition until the following year. The size of a small suitcase, the self-contained Osborne-1 was the first computer to be sold with bundled software packages, and cost about $1,200 less than a fully-loaded Apple II.