Updated from 10:10 a.m. EDTNCR ( NCR) surged Monday after reporting that second-quarter earnings will be nearly double Wall Street's expectations. The Dayton, Ohio, maker of computer systems cited strong cost control and an unexpected revenue surge for the gains. NCR said it expects second-quarter operating income of around 35 cents a share, well ahead of the 18-cent Thomson First Call consensus estimate. The company said revenue will rise about 6% from a year ago to around $1.44 billion. Wall Street had been expecting revenue of $1.4 billion. "NCR's Teradata Data Warehousing and Financial Self-Service businesses both generated second-quarter year-over-year revenue growth well ahead of expectations," the company said Monday. "NCR's second-quarter revenue growth included 3 percentage points from foreign currency fluctuations." NCR shares closed up $4.79, or 10.2%, to $51.81.