The technology sector added 100,000 new jobs in the first half of 2012, according to a report from the TechAmerica Foundation that found jobs growth in three out of four sectors analyzed. The software industry saw the largest increase -- adding more than 50,000 jobs in the first six months of the year -- followed by engineering and tech services and technology manufacturing, which together accounted for about 59,000 positions. Communications services, however, lost more than 10,000 jobs during the period.