Sharon Buchanan, a cashier at the Marsh supermarket in Troy, Ohio, scanned the world’s first Universal Product Code (better known as a barcode) on a 10-pack of Wrigley’s Juicy Fruit gum.

ENIAC was soon put to use running calculations to help build a hydrogen bomb, and continued to operate until 1955.

The economic bubble that is also referred to as the ‘dot-com boom’ was the result of investors speculatively pouring money into the numerous internet companies that were founded in the mid- to late-1990s.