PC shipments to see 'most severe fall on record' 3 December 2013 Last updated at 00:59 Global shipments of personal computers (PCs) are expected to see their worst fall on record in 2013 according to research firm International Data Corporation (IDC). The firm said sales of PCs would fall by 10.1% this year, worse than the previous estimate of 9.7%. PC sales have fallen for the last six quarters, the longest historical drop. Global shipments of PCs have been hurt by the growing popularity of tablets and smartphones. "Perhaps the chief concern for future PC demand is a lack of reasons to replace an older system, " Jay Chou, a senior research analyst with IDC, said in a statement. Worldwide shipments would continue to fall in 2014 but at a slower pace, said IDC.