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friends welcome to our blog. Today we know about what is Storage Device, we are
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understand Storage Device.
What Is Storage Device?
A storage device is an integral part of our computer system, without it our computer system is incomplete. We can save many types of data in our storage devices such as audio, video, text document, image, and more. The place where this data is saved is called a storage device.
Storage Device Explain with Examples.
A computer
system requires memory to store and retrieve instruction data. Data is standing
memory by a process called write and rewrite the memory by a process called
read memory are need of stores location is in which data is a stand in is
location is identified by an unit address insert devices are used by computer
for storing data either temporary and permanent.
The memory
unit stores all information in memory cells also called memory location and
address can accommodate one or more bits.
The amount of information that can be hold memory is known as its
capacity which is specified bytes.
They are
variety of stores devices include in semiconductor memory primary memory RAM
and ROM and magnetic memory secondary memory, floppy disk, CD ROM, Pen Drive etc.
There Are Two Types of Memory.
- Primary Memory
- Secondary Memory
Primary Memory
A memory
that is directly associated with the CPU. Before being actually processing the
data, the data is to be stored in some stores area. This stores area is known
as primary stores. It is also referred to as internal storage or main memory.
There Are Two Types of Primary Memory.
- Random Access Memory (RAM)
- Read Only
Memory (ROM)
Random Access Memory (RAM)
Random
Access Memory (RAM) is identical to core memory in function read write memory
data can be stored in Ram addressing one ram cell. The data and instruction
head in via input device are stored in the RAM so it many called as user
memory.
Random
Access Memory (RAM) instructions are temporary in nature and are present only
for the time that the program being used. Random Access Memory (RAM) is
volatile memory.
Read Only Memory (ROM)
Read Only
Memory (ROM) it is permanent memory stores as the name suggests that part of
the memory which is only read by the computer. Read Only Memory (ROM) is non – volatile
fix instruction on it that is instruction are related to the operating system
of the computer this instruction are written by machine many features and these
instruction cannot be updated by the user.
Secondary Memory
Secondary
memory is known as permanent memory visa how the primary memory been with in
the computer has Limited capacity its temporary in nature to overcome this
limitation, it is necessary to writing the data program permanently, for the
future use. Which could be used store capacity and present outside of the CPU,
these are called as banking stores device or secondary memory or external storage
device secondary memory stores capacity is huge permanent in nature instruction
can be update any time.
There Are Many Types of Secondary Memory.
Magnetic Tape
- Magnetic Disc
- Hard Disk
- Floppy Disk
- CD ROM
- Pen Drive
Magnetic Tape
These are
seen similar to audio cassettes tapes. It is made of plastic griffon coated one side with one iron oxide based
magnetize materials. Data records in the form of tinny visible spot on the
magnetized side as magnetic as magnetic tapes can be only are excesses serial.
The typical
magnetic tapes would y2 in width and tapes run from 50 to 2400 feet long and
have 7 to 9 running the tapes of the length of top width a range of 556 to 6250
characters inch.
Magnetic Disc
Magnetic
disc resembles long playing records and can be except randomly fixed or more
disk are amounted on a control hub to form a disk part which rotated spinning
the disc at 50 and more revolution per second information can be records on
both sides of the inner b at disk through a series of magnetic and nonmagnetic
spots. Why on the two outer disks
recording is possible only one the inner surface.
There Are
Two Types Of Magnetic Disks.
- Hard Disk Drive
- Floppy Disk Drive
Hard Disk Drive
Hard Disk
Drive it is made of thin circuit aluminum disk coated on one or both of the
surfaces with. A magnetized material this disk is mounted on spindle shaft the disk
has to surface upper and lower. The upper surface of the topmost disk and the
lower surface of the lower most disk are not magnetized where as both the surface
of the other in between dicks are magnetized. Disk has read and write head with
the help of read and write had information can be excesses and write on the
surface of the disk.
The capacity
of hard disc is available from 20 GB, 40 GB, 60 GB, and 80 GB, 500 GB.
Floppy Disk
The floppy
disk is a kind of stores devices that used develop in the early in 1970 age of
cheaper and faster stores device. It is a Small Random Access disk. The disk is
made of flexible plastic coated with magnetic Oxide. The surface of the disk is
made up of tracks. These tracks are in concentrate it circles on the surface of
the disk. Data is stored in the form of magnetic spots on these tracks. Tracks
are divided into sector.
CD ROM
CD-ROM
extends from compact disc read only memory the data that is huge but really
need to be changed Stood on this media.
Ex -
dictionary encyclopedia medical reference laboratory music video distribute
their products on CD ROM Because of high process or data density.
CD ROM can
hold data density CD ROM up to 600 MB to 700 MB because of the CD high capacity
infect the body can change the data many companies choose the CD ROM add the
distribution media for their products. Another important application of CD ROM
technology is CD interactive which stores digital audio full motion video and
graphics animation text and data on CD ROM.
Pen drive
Pen drive is also known as flash drive and is also called USB pen drive. We often use pen drives. In this, we can save data from 8 GB to 32 GB such as - audio file, video file, image, text document and presentation. The pen drive is very light weight can be easily carried from one place to another and you can do it easily.
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