What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...

Code readers are diagnostic tools that every car owner should consider owning. Having one of these is as important as carrying a spare tire or a fire extinguisher in the trunk. Back in the day, before ...

A PDF (portable document format) file provides a quick and convenient way to share and print documents and files. You can edit and create PDF files if you have the right apps, but these are primarily ...