A disk is a storage device that is used to store data such as files, documents, and media. It typically consists of a circular flat plate made of a magnetic or optical material, which is divided into sectors and tracks that can be accessed and read by a computer's disk drive. Disks can be divided into two main types: hard disk drives (HDDs) that use magnetic storage, and optical disks such as CDs and DVDs that use laser technology to read and write data.
