ARM Holdings is giving the technology hardware and equipment sector a lift Monday afternoon. The sector has seen a 15% rise in the last week since the chip giant released its fourth quarter results.Booming demand for mobile phones, tablet computers and other low-powered devices meant 2010 saw the highest ever annual revenues, profits and cash generation for the group.Also higher is sector peer Amino Technologies after it slashed full-year losses, as expected, after returning to profitability in the second half. The Cambridge-based online video services provider lost £0.88m in the year ended 30 November compared with an £8.7m deficit the year before.BT is providing a drag on the FTSE 100 and the fixed line telecommunications sector following the release of its strong third-quarter results on Thursday. Strong growth in broadband subscribers and a pick-up by its global services operation helped the telecoms titan lift profits by almost a third over the past three months.Top performing sectors so far todayTechnology Hardware & Equipment 800.15 +3.20%Construction & Materials 4,320.87 +2.35%Personal Goods 20,028.88 +2.30%General Industrials 3,304.87 +2.13%Tobacco 28,278.43 +2.04%Bottom performing sectors so far todayFixed Line Telecommunications 2,389.38 -1.32%Mobile Telecommunications 4,070.96 -0.96%Real Estate Investment & Services 1,524.20 -0.47%Household Goods & Home Construction 6,508.44 -0.25%Food & Drug Retailers 4,778.67 -0.02%