What Is Storage Device ? | Types And Uses Of Storage Devices

What Is Storage Device ? | Types And Uses Of Storage Devices – Storage devices are called those that store data and information termporarily or permanently according to the need. They store the data digitally. A storage device is a computer hardware that is used to save data safely, and use it according to need. They can store the information for short-term or long-term. You can find these storage devices in or out of a computer or server. At the same time, these storage devices are also called storage medium or storage media. This is a very important part of any single computer device. At the same time, they are available in different sizes and types depending on their needs and functionalities.

What is A Storage Device ?

A storage device is a computer hardware that is used to save data safely, and use it according to need. They can store the information for short-term or long-term.

Types of Storage Devices :

There are four types of storage devices that are used in computers. Now let’s know about the different types of those storage devices.

Primary Storage Device
Secondary Storage Device
Tertiary Storage Device
Off-line Storage Device

Primary Storage Devices :

These primary storage devices are also known as main memory.
It is the direct memory that is accessible through the Central Processing Unit (CPU) that too via a memory bus.
These storied devices are volatile.
Their memory is temporary, that is, as the device is switched off or rebooted, then their memory is erased.
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Example :

RAM
ROM
Cache

Secondary Storage Devices :

These secondary storage devices are storage devices that are not directly accessible through the central processing unit.

It uses input and output channels to connect this type of storage devices with the computer. Because they are mainly external.
They are non-volatile and have a higher storage capacity than primary storage devices.
This type of storage is permanent until removed by an external factor.
They have both internal and external memory.

Example : Hard Disk

Tertiary Storage Devices :

These tertiary storage devices are not as important and are often not even part of a personal computer.

It has often been found that it uses a robotic mechanism that mounts or dismounts the removable mass storage media into a storage device.
This type of storage device uses robotic functions.
It does not require repeated human intervention and is able to do its job automatically.
It is a comprehensive computer storage system that is very slow, so it is often used to archive data that is not accessed repeatedly.

Example:

Magnetic Tape
Optical Disc

Off-line Storage Devices :

These offline storage devices are also called disconnected storage.
It is a computer data storage that is not under the control of the processing unit.
It has to be connected by a human being before a computer can access it again.
This type of storage devices is also called disconnected or removable storage.