Inventor Dr Hasan Mahmud says the calculator is designed to help people with little formal education perform everyday calculations in Bangla.

Peter is a writer and editor for the CNET How-To team. He has been covering technology, software, finance, sports and video games since working for @Home Network and Excite in the 1990s. Peter managed ...

These guides will help you find your way around several generations of Microsoft’s Office apps for Windows — and Windows itself. Need to get up to speed on the latest features in Excel? Wrestling with ...