card-file system noun2 •A method of organizing information using physical index cards in a container with dividers (like an old library catalog or a modern personal organizer); using individual cards for discrete records, sorted for quick retrieval, whether for household tasks, business contacts, or digital files. •A digital file structure (like the PS2 memory card system or smart card OS) that mimics this hierarchical, card-like organization for data storage. formscard-file systems
