ELI5 mode
A card catalog is a traditional library tool consisting of alphabetically arranged index cards housed in drawers, each detailing bibliographic information like titles, authors, and subjects to help users locate books and materials. This system revolutionized information retrieval in the 19th century by standardizing access to collections, but it's now mostly a relic in the digital age, evoking a sense of hands-on discovery amid today's search algorithms.
AI-generated·