Computers

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Hard drives

A hard disk drive (HDD), hard disk, hard drive or fixed disk

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is a data storage device used for storing and retrieving digital information using one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material.

Computer Monitor

A computer monitor or a computer display is an electronic visual display for computers. A monitor usually comprises the display device, circuitry, casing, and power supply. The display device in modern monitors is typically a thin film transistor liquid crystal display(TFT-LCD) or a flat panel LED display, while older monitors used a cathode ray tubes (CRT).

Optical drives

In computing, an optical disc drive (ODD) is a disk drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or from optical discs.