Computer hard disc

Computer hard disc

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Credit: ANTONIO ROMERO/SCIENCE PHOTO LIBRARY

Caption: Computer hard disc. Internal workings of a computer's hard drive. This piece of hardware consists of four anisotropic magnetoresistive (AMR) read-write heads (centre) above two disc platters (round) that are spun at high speeds by a central spindle. The discs are coated on both sides with a magnetic material that transforms the disc's magnetic field into an electrical current when reading the disk, and turns the electrical current into a magnetic field when writing to the disk. An arm moves radially to move the head over the disc.

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Keywords: component, computer, computing, data, data storage device, device, digital, digital information, disc, electronic, electronic engineering, electronics, hard disc, hard disk, hard disk drive, hard drive, hardware, hdd, information storage, information technology, internal, magnetic, magnetic head, magnetoresistance, memory, neodymium magnet, platter, random access, storage media, technological, technology

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