Former Apple Computer Inc and National Semiconductor Corp chief executive Gilbert Amelio has joined The Parkside Group LLC, a San Francisco-based private equity investment firm, as a partner and member of its board of directors. According to Parkside, Amelio will lead its high technology financing efforts. He will focus on management-friendly buyouts of companies with proven technology and earlier-stage financing of companies that are within a year of generating revenue. Amelio also will participate in all acquisitions considered by Parkside. Parkside, which was formed in April, describes itself as a buyout firm that leverages the CEO experience of its partners in each investment.