20. 資料
PC出荷台数とか
Gartner Says Worldwide PC Shipments Declined 5.2 Percent in First Quarter of
2015 http://www.gartner.com/newsroom/id/3026217
Samsung Reasserts Its Global Lead in Smartphone Shipments with a Renewed
Focus on Lower-Cost Smartphones in the First Quarter of 2015, Says IDC http://
www.idc.com/getdoc.jsp?containerId=prUS25589215
Gartner Says 2013 Worldwide Server Market Grew 2.1 Percent in Shipments, While
Revenue Decreased 4.5 Percent for the Year http://www.gartner.com/newsroom/id/
2671315
サーバ台数とか
Wikimedia Grid Report http://ganglia.wikimedia.org/latest/