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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Storage that uses a surface which can be magnetised to store data
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Storage that can be disconnected from the main computer unit, for example to transfer files between computers.
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Moving a data, program or file from memory onto secondary storage for later use.
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None of the above
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Detailed explanation-1: -Magnetic storage or magnetic recording is the storage of data on a magnetized medium. Magnetic storage uses different patterns of magnetisation in a magnetizable material to store data and is a form of non-volatile memory. The information is accessed using one or more read/write heads.
Detailed explanation-2: -A magnetic disk is a storage device that uses a magnetization process to write, rewrite and access data. It is covered with a magnetic coating and stores data in the form of tracks, spots and sectors. Hard disks, zip disks and floppy disks are common examples of magnetic disks.
Detailed explanation-3: -Computer systems need to store data in digital format. One of the most widely used types of digital data storage is magnetic storage. This refers to any type of data storage using a magnetized medium. Digital data consists of binary information, which is data in the form of zero and ones.
Detailed explanation-4: -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-5: -Disk storage solutions include floppy drives (8, 2.5 and 5.25 inch alike), magneto-optical rewritable discs as well as hard drives including helium hard drives. These technologies have taken us from capacities of kilobytes to numerous terabytes and bytes per second to 100+ MB per second.