Sometimes a problem seems hard, but the right insight can make it easy. If you were asked to write a program to compare two PDF files and show the differences, how hard do you think that would be? If ...

In an effort to get us to forget about file systems, Apple has done all it can to hide iOS’s file system from users, but the real world continues to intrude: we still need a way to juggle individual ...

Each category of software has one application that becomes the standard for comparison: Microsoft Outlook for e-mail, Word for documents and Adobe Acrobat for PDFs. But there are plenty of reasons to ...