Switching, logic, and storage Optics vs. the Competition

Examining the case to be made for optical data storage, Masud Mansuripur divided the field into three areas: read-only memories (ROM), currently used in compact disk and CDROM technologies; archival storage, the so-called write-once, read- many (WORM) applications; and erasable drives and media, which use either the magneto-optic or phase change mechanism. All products in the erasable category available today make use of magneto-optics, Mansuripur claimed.

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