TOI Tech Desk / TIMESOFINDIA.COM / Updated: Jun 24, 2026, 18:34 IST ...

PG&E is warning Bay Area customers about a new scam involving QR codes and barcodes, with customers across the utility’s service area losing more than $211,000 to impostors in the first half of the ...

Difference Between a Barcode and a QR Code: A Barcode is a 1-D code that contains just simple numbers or letters. A QR Code is a 2D square code that can contain a lot more information such as website ...

A Spectra Physics Model A supermarket scanner—one of the first ten ever produced. A laser within the unit projects a beam onto a mirror that redirects it through the glass plate on the top. Cade ...