Led by strong performance in its software business, IBM on Tuesday posted second-quarter profits up\u00a09 percent from last year.The company earned US$2 billion in the quarter that ended June 30, compared to $1.9 billion in the second quarter of 2005.Per-share earnings were $1.30, which marked a 14 percent increase over $1.14 last year. The company also beat expectations from analysts polled by Thomson Financial, who had predicted earnings of $1.29 per share on revenue of $21.89 billion.IBM reported revenue of $21.9 billion, down 2 percent from last year. When adjusted for the company\u2019s May 2005 sale of its PC business to China\u2019s Lenovo Group, the result was up\u00a01 percent.The most profitable business segments in the second quarter were software, microelectronics and IBM\u2019s System z mainframe computers, said Mark Loughridge, senior vice president and chief financial officer, during a conference call with analysts and reporters.The strength of those areas offset losses in IBM\u2019s server segment, where problems in the supply chain left some orders unfulfilled, and in services, where short-term orders were weaker than expected."While some areas of our business did well, others leave room for improvement," Loughridge said.The company was able to compensate for its weaknesses through a renewed focus on its highest-margin businesses, IBM Chairman and CEO Samuel Palmisano said in a statement.Under that process, IBM cited low margins as the main reason it jettisoned its PC line to Lenovo last year. Likewise, IBM has boosted its investment in high-margin segments like its software and services businesses.Revenue from the company\u2019s software division rose\u00a05 percent to $4.2 billion this quarter, with the great majority\u2014$3.2 billion\u2014generated by IBM\u2019s middleware brands, including WebSphere, Information Management, Tivoli, Lotus and Rational. The remainder came from operating systems and product lifecycle management.In contrast, the Lenovo sale contributed to a drop in IBM\u2019s hardware business, where revenue fell\u00a07 percent to $5.1 billion. Discounting the effect of the divested PC business on 2005 numbers, hardware revenue actually rose\u00a03 percent.-Ben Ames, IDG News Service (Boston Bureau)Related Link:\n\nYahoo Misses Q2 Revenue Target, Delays Ad SystemCheck out our CIO News Alerts and Tech Informer pages for more updated news coverage.