Question

write a short note on storage device

Answer 1

So that we uses the Secondary Storage devices those are used for Storing the data in a Permanent Manner means all the Data will remain Stored whether the Power is Switched on or Switched off means the Power Will never effect on the System. For storing the data in a Permanent Manner we uses the Magnetic Storage Devices. There are also Some Advantages of Secondary Storage Devices.

1) Non-Volatile Storage Devices: The Non-Volatile Storage Devices are Non-Volatile in the nature means them never loss their data when the Power goes switched off. So that data which is Stored into the Non-Volatile Storage Devices will never be Loosed When the Power Switched off.

2) Mass Storage: The Capacity of these Devices is very high means we can Store the Huge Amount of data into the Secondary Storage Devices. We can Store data into the Secondary Storage Devices in the form of Giga Bytes and Tera Bytes.

3) Cost Effective: The Cost of Secondary Storage Devices is very lower in compare to the Main Memory So that they are also called as the more cost effective and they are very small and couldn’t easily damage. And the data can’t be easily loss from these Disks. 

4) Reusability: As Memory Contains the Data in the Temporary as well as Permanent Manner. But the Secondary Storage Devices are always Reusable means they can be erased and stored any Time. Means we can add or Remove the Contents from these Disks when we Requires.

There are Many Types of Storage Devices those are based on the Sequential and Random Access Means the data which is Stored into the Secondary Storage devices can be Read either from the First Location which is also known as the Sequential Access or Sequential Manner and the Data can be Read from these Disks and also from any Locations. So if any Disk provides this Utility then this is called as the Direct Access Mechanism. There are Many Storage Devices those are either based on the SASD or Some are DASD.

Answer 2

The storage device has the following features:

• The storage device is a part of the computer system that enables to store data safely and access it whenever necessary
• It is used to store the instructions and information to be processed and it is one of the core components of the computer system
• The storage device is essential for the booting up of computer
• Information or data can be stored permanently or temporarily in a storage device
• It is a hardware device that is used to protect and store in the form of digital such as videos, audios, images, etc.
• The storage devices are divided into three according to their mode of storage

Primary Storage Devices

• This memory can be accessed by the Central processing unit and hence is known by the name Primary Memory
• This is volatile so that it stores data temporarily
• Whenever the system is switched off the memory will be erased
• The size of these storage devices is very small as compared to others.
• The examples of primary storage devices are Cache Memory and RAM

Secondary Storage Devices

• These are the external storage devices that are connected through input and output channels
• These storage devices are volatile and they are comparatively larger than the primary storage devices
• The data are stored permanently in these storage devices and hence it is not removed even if the system is turned off
• The examples include the USB, floppy discs, etc.

Tertiary Storage Devices

• These storage devices are not part of personal computers
• And they are mainly used in Robotics.