NCR, the Duluth technology company, on Monday announced that it was doing so much better than expected that it raised its expectations.

NCR will report on its first quarter results Thursday, but said in a preliminary filing that it was raising its 2012 revenue expectations by 4 percent. It originally said it expected a 7 to 9 percent increase in 2012.

In the first three months of the year, NCR's revenue was up 18 percent over the same period in 2011, to $1.24 billion. The company said its integration of Alpharetta-based Radiant Systems, which it acquired last summer, was on track and its software growth and order backlog were at or near record levels.

The company's stock closed at $21.95 a share Monday, up 2.4 percent.