How to Scan a Lot Number Using a Bar Code Scanner. Bar code scanning is an easy way to track your business inventory or even keep tabs on office supplies. Many bar codes contain a lot number.

Your Android or iPhone can probably already scan QR codes. Here's how to do it no matter what phone you have.

QR codes can house a whole lot of data, from the URL of a webpage or service, to where to directly download an app. Here's how to scan them.

QR codes are easy to use, if you know how to access the information they contain and have an internet connection.