Firearm barcodes

I just noticed that Smith & Wesson is doing 2D Data Matrix barcodes on some of their pistols. As a geek, I find this interesting for a few reasons. First, basic inventory tracking at the factory and second, to help reduce the ability to fake modify gun serial numbers. As with most gun issues, this will have zero impact on criminals. If they want to change a serial number, they’ll spend the time and money to do it – or, they just don’t care and they’ll use a …

2D barcodes, winners and losers

Although 2D barcodes (also called QR codes – short for Quick Response) aren’t new, but they still haven’t caught on in the US. I’ve been asked by a lot of people "What is that?" when they see a QR code. To answer those people, they are postage stamp size or larger mathematical image that smartphones (with a high enough resolution camera) can read and convert to characters. Those characters can be a web address or a block of text or just about any input that a smartphone can …