Information storage devices
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Information storage devices, as the name already says, are devices capable of recording data in their memory, thus facilitating the transport of information and its distribution on different computers. In addition to that, information storage devices help as secure data storage tools, also known as backup. computersmarketing
Among the most used devices on a day-to-day basis are the following:
Magnetic Storage Devices (Hard Drives and Floppy Disks)
Optical storage
devices (CD, DVD, Blu-Ray)
Electronic storage
devices (pendrive and memory card).
Here are the main
characteristics of each one: hollyhealthfitness
Magnetic
Information Storage Devices
Those devices are
the oldest and widely used. Their advantage is that they allow the
storage of large amounts of information in small volumes. The management
of the stored data is carried out through magnetic dipoles present on its
surface. The best known examples of magnetic storage devices are
external hard drives. webtechgalaxy
The external hard drives are
devices are used on different occasions primarily to store large amounts
of data and use on other computers.
On the other hand, internal hard drives remain fixed in the computer in
which they are installed, but on the contrary, they offer a much greater storage capacity than external hard drives.
Magnetic storage devices are the oldest and most widely used today, because they allow managing a high density of information, that is, storing a large amount of data in a small physical space. healthbeautystudio
The reading and writing of information in a storage device by
magnetic means occurs by the manipulation of magnetic particles present on
the surface of the magnetic medium.
For writing, the device's reading and writing head generates a magnetic field that magnetizes the magnetic particles, thus representing binary digits (bits) according to the polarity used.
For reading, the reading and writing head generates a magnetic field, which when it comes into contact with the magnetic particles in the medium verifies if it attracts or repels the magnetic field, thus knowing if the pole found in the molecule is positive or negative.
Other examples of magnetic storage, but which have already been forgotten and replaced by newer technologies such as the pendrive, are floppy disks, Tape Backups and DAT tapes, among others.
It is also necessary to note that removable magnetic storage
devices typically do not possess the capacity and security of fixed
devices.
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