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| Computer Storage And its Types |
Computer Storage And its Types
Storage
The method
involved with putting away data on a PC is called storage. A device used to
store information is known as a storage device.
Advantages of storage
Data in better
places can be put away on a PC and utilized again when required.
Types of storage
devices
- Primary storage devices
- Secondary storage device
Primary storage devices
The storage device
introduced on the motherboard is known as the essential storage device.
Additionally called memory. Sorts of Primary Storage There are two kinds of
essential storage devices
1. Rom
2. Ram
Rom
ROM represents
Read Only Memory. A storage device can peruse the information put away on it.
It can't be altered, erased or eliminated. It resembles something composed on a
stone that can't be eliminated or changed together. The super durable storage
and the information in the ROM stay safe in any event, when the PC is switched
off. There is data connected with the PC startup process that is composed
during memory recuperation. The PC can't run without the ROM.
Ram
Ram represents
Random Access Memory. It resembles something composed on sand that doesn't
stand the test of time and will be deleted. This is impermanent memory,
likewise called non-unstable memory. Ram stores the data that the PC is as of
now utilizing. All information is lost when the power is switched off.
Information can be perused, put away, changed or erased in RAM.
Size of storage
A byte is a unit
of estimation for memory. 1 byte addresses one person
For instance, US
is 8 bytes.
A byte is a
little unit
1024 bytes = 1
kilo bytes (kb)
1024 kb = 1
megabyte (mb)
1024 megabytes =
1 gigabit (gb)
Secondary
storage device
For what reason
is a second storage device required? Slam stores impermanent data however we
can't store data in ROM. So we really want a spot to store data in any event,
when the PC isn't working. Otherwise called non-unpredictable memory. For
instance, hard plate, hard disk, CD, attractive tape, and so on.
Advantages of secondary storage devices
1-More data can
be saved contrasted with the fundamental storage device
2-Data stays in
salvageable shape in any event, when the power is off.
Types
of storage devices
1-Magnetic disk
2-Optical disk
Magnetic disk
This classification
incorporates floppy disks and hard drives.
Floppy disks
Floppy means
delicate and disk implies something level and round. A floppy disk can store
144 MB of information. The data is put away in a roundabout manner. The plate
drive is covered with a hard case (lock, magnet, coating, shell and score) and
the disk isn't safeguarded by a name, and that implies that the disk can't be
composed on and can be perused. You can compose something about the items in
the plate on a piece of paper joined to the container. Notwithstanding, utilize
a delicate pen to try not to harm the inside of the vehicle box. The floppy disk
is light, modest, adaptable, and the fundamental benefit of the floppy plate is
transportability. It ought to be utilized with care, generally put away
information might be lost. It should be avoided magnets to keep away from harm.
Try not to put the disk in a hot spot. A floppy disk drive is utilized to
peruse/compose information on a floppy plate.
Hard disk
It is made of
strong material, seal on seal. Beyond what one hard drive can be fixed for the
situation to build the memory limit of the PC. Information is put away in a disk.
How much information that can be put away here is colossal. Hard drives are
more tough than floppy drives, however they are not quite so compact as floppy
drives. Try not to take magnets with you or spot them in high temperature
regions
Optical Disk
It is called an
optical plate on the grounds that a laser pillar is utilized to peruse and
compose information. It is 4.25 inches wide and under 1/20 inch in distance
across. It's a basic cell phone. There are four kinds of optical plates
1 - CD-ROM
Cd represents
Compact Disk and ROM represents Read Only Memory. It is a perused just storage device,
generally utilized for sound, video, and so on 600 MB to 800 MB of information
can be put away. A straightforward cell phone. Compact discs can't be damaged.
2-Write once read many(WORM)
Subsequent to recording the information, it
works like a CDROM. This data is utilized to store data.
3 - CDs are
rewritable
Cds that can be
perused and composed are many times called rewritable CDs.
4 - DVD
DVD represents
advanced hard plate. It was intended to store video, which is the reason it was
initially called a computerized video plate. Its ability is huge.
DVD ROM
- information can be perused from it, yet all at once not composed,
changed or erased.
DVD RAM
- Works like a rewritable CD. Information can be perused, composed, put
away or erased. It has a huge memory limit going from 4.7 GB to 9.4 GB. It is
versatile.
Other storage devices
Magnetic tape
It resembles a soundtrack. Information is put
away in a solitary line. Information read first, put away first. It has a great
deal of memory limit. Avoid magnets to stay away from harm.
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