To digitize something means to convert it from a physical or analog form into digital data that computers can store, process, and share. When a library digitizes old newspapers, workers scan the fragile paper pages and turn them into computer files that anyone can read online without touching the originals. When you take a photo with a phone, the camera digitizes the light and colors it sees, transforming them into millions of tiny digital dots called pixels.

Before digitization, information lived only in physical form: books on shelves, photos in albums, music on vinyl records. Finding anything meant traveling to where it was stored and handling the physical object. Digitizing changed everything. Once something becomes digital data, you can copy it perfectly, send it anywhere instantly, search through it in seconds, and preserve it without wearing it out.

Museums digitize artwork so students worldwide can study masterpieces up close. Scientists digitize handwritten field notes from expeditions a century ago, making them searchable and useful for new research. Families digitize old home movies before the film degrades. The related word digitalization means the broader process of moving activities and systems to digital formats, like when a school stops using paper report cards and switches to an online grade portal.