It is an organized collection of structured information, or data, typically stored electronically in a computer system.

Materials in digital format are accessible electronically. Examples of e-resources are electronic journals (e-journals), electronic books (e-books), and online databases in varied digital formats such as Adobe Acrobat documents (pdf) and WebPages (html).

A digital library, alternatively referred to as an internet library, a digital library, a digital repository, or a digital collection, comprises a database of digital objects accessible via the internet. These objects may consist of text, still images, audio, video, digital documents, or other digital media formats.