Câu hỏi 603296 - Tiếng anh chuyên ngành - IT01.1 What is the best definition of 'optical storage'? Chọn đáp án: A legacy storage device using magnetic tape; normally reading and writing data slower rate and used for backups A data storage technique using a pattern of markings on a disc that can be read by a laser; examples include CD-ROM, and DVD-ROM technology A non-volatile (permanent) memory type that is erasable via ultra-violet light and reprogrammable A legacy storage device which can read and write data slowly from a removable magnetic medium (normally 3.5" in diameter and holding 1.44 MB of data) Xem đáp án