MERRIMACK, N.H.--(BUSINESS WIRE)--PC Connection, Inc. (NASDAQ: PCCC), a national provider of a full range of information technology (IT) solutions to business, government, healthcare, and education markets, today announced results for the quarter ended March 31, 2015. Net sales for the first quarter of 2015 increased by 3.8% to $581.3 million, compared to $559.8 million for the prior year quarter. Net income for the quarter ended March 31, 2015 increased by 20.4% to $8.6 million, or $0.32 per d