Research firm IDC today released its preliminary calculations of PC shipments for the first quarter of 2013, finding the worst year-over-year performance in the nearly 20-year history of its tracking studies. According to IDC's numbers, the worldwide PC market declined nearly 14% compared to the first quarter of 2012, with the U.S. market declining by nearly 13%.Despite some mild improvement in the economic environment and some new PC models offering Windows 8, PC shipments were down significantly across all regions compared to a year ago. Fading Mini Notebook shipments have taken a big chunk out of the low-end market while tablets and smartphones continue to divert consumer spending. PC industry efforts to offer touch capabilities and ultraslim systems have been hampered by traditional barriers of price and component supply, as well as a weak reception for Windows 8. The PC industry is struggling to identify innovations that dif
