COMPUTER HARDWARE COMPONENTS FUNCTIONS
EXTERNAL AND INTERNAL STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a magnetic charge is applies to sections of a spinning disc, which either attracts or repels a read head, corresponding to 1s and 0s
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A laser light scans the surface of the disc and is either reflected or absorbed by pits on the surface, corresponding to 1s and 0s
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Carbon nanotubes are arranged in a preconfigured alignment either up/down and left/right, corresponding to 1s ands 0s
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A little goblin inside the drive draws prictures and then converts them to 1s and 0s somehow
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Detailed explanation-1: -They store data in the form of magnetized spots in adjacent circular tracks on the surface of a metal cylinder. A single drum may carry from one to 200 tracks. Data are recorded and read by heads positioned near the surface of the drum as the drum rotates at about 3, 000 revolutions per minute.
Detailed explanation-2: -A magnetic disk primarily consists of a rotating magnetic surface (called platter) and a mechanical arm that moves over it. Together, they form a “comb”. The mechanical arm is used to read from and write to the disk. The data on a magnetic disk is read and written using a magnetization process.
Detailed explanation-3: -Hard drives use magnetism to store information in a layer of magentic material below the surface of the spinning disk. If you were to look at high magnification at the surface of the platter of a typical hard disk, you would see images similar to those on the right.
Detailed explanation-4: -Older hard disk drives used iron(III) oxide (Fe2O3) as the magnetic material, but current disks use a cobalt-based alloy.