As a result of stronger than expected demand for business PCs, Intel has updated its second-quarter revenue. The world's largest chipmaker is now forecasting revenue of $13.4 billion to $14 billion in the second quarter. The company had expected $12.5 billion to $13.5 billion in revenue in the quarter.

Intel also expects some revenue growth for the year as compared to the previous outlook of approximately flat.

The forecast provides another hint of optimism in the PC industry, where Intel gets the majority of its revenue. Businesses are replacing aging machinery following the end of Microsoft's support for its Windows XP software.