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Data and information storage devices in computing: What are they, what is it for and what types exist?

UPDATED ✅ Computer storage devices are those that allow us to save data on the PC ⭐ ENTER HERE ⭐ and Learn more about the subject

The technology is very extensive and has evolved over time. Today we are going to talk a little about the subject of data storage devices and their transformations to the present day. There are several types and classes of these tools, which can be found on the market and allow you to save each of the data you need.

However, there are also secondary storage units where the information that is needed inside is stored. Such is the case of memory cards, pen drives, hard drives, CD, DVD, Blu-Ray.

That is why when you need to store the data on your computer you can use these options, which are essential elements today, because more and more are being updated for the user to save any projects or activities you run, as well as your files.

What is a computer storage device and what is it used for?


Storage devices are capable of transcribe and save information for the purpose of storage. Motivated by the large portion of information that users currently handle, storage devices are as fundamental a piece or almost the same as a computer.

These devices are those through which any type of data is stored in a memory, thus facilitating the exchange of information, as well as its distribution in any type of equipment that you have. Likewise, they are instruments that provide security when saving data.

It is then that through these devices you can perform different types of functions and apart from using each of the benefits they provide to protect data or programs temporarily and even permanently. reason is why can be used with media that perform this same function.

This way of saving data has always been present in the world of technology, since man has always liked to store his files so that future generations can use them.

Giving information to others is eternalizing history as well as people’s experiences, which is why data storage has always existed, so this has played a fundamental role throughout the history of technology. In that sense, it is undeniable that it is one of the keys to computer developmentmaking things last over time.

Top 10 Storage Devices

Next we show you a list with the 10 best-selling storage devices of the moment so you can choose the best one for your PC.

What are the main types of computer storage devices?

Analyze HHD or SSD hard drive

These storage media are fundamental in computing, since, as has been said before, they help save data from the files that you consider to be important to you. It should be noted that the same can be stored by users or by an application. That is why you should know the different types, so you can select the most suitable for you.


It is one of the oldest devices and has been used extensively by users. Its great benefit is that with them a large amount of information can be stored in just a small volume.

Also, this protection is executed through “magnetic dipoles” that are on the surfacebeing the most used and even more the so-called external hard drive.

This type of device is one of the most used today, since they allow a large part of the information to be managed. Which means that you can have a lot of information in a very small physical space.


This device is used to save multimedia files, such as: videos, songs or photos. Likewise, are used to store programs and applications and even games. Said data is stored by means of a laser beam that has a high precision.

Within these devices we can find:

  • DVD
  • CD
  • DVD-RW
  • blu ray
  • CD ROM
  • CD RW

These devices store a lot of information and are used by users constantly, since they can be easily obtained in any store where they sell electronic devices. Apart from storing movies, music and images, they are also used for store computer programs.

On the other hand, this type of device performs its reading through a storage medium with a laser beam, where the surface is stored by means of microscopic ditches that project the laser in different directions. Your information is represented by bits.


It is a new way of storing information, where use electronic circuits that store the information. They can be obtained through flash drives or memory cards, which are widely used by users for different purposes.

They are easy to use so they are very popularalthough we must say that they have a somewhat limited storage capacity for being a small device.

They are generally used in computers, digital cameras and mobile phones. They are known by the name of SSD (Solid State Drive).

These have no moving partsbecause they are only made up of electronic circuits that do not need to be mobilized in order to record or read the information.

How disks work How is data stored on them?

A computer is used to be able to store the data of the files in “clusters” that are in the HDD. This is a part that has a circular shape and where certain data is found.

The aforementioned data that can be stored in the clusters it will depend on the system operational you have. For example, when you have a FAT16 operating system, your cluster is 32 KB; the UNIX has 1 KB of cluster; and the FAT32 It has 32 clusters of 4 KB.

All this will depend on the size of the cluster and the hard disk. But clusters that are small make data archive better.

Generally, at the time a file is saved to the cluster it will be the only one stored in that location. That is why the computer track address of the saved file, making it possible for this to tell the computer where the data is saved.

It is then that if a document has about 2 KB it will be saved in the FAT16 operating system, for which it will have 32 KB of space available.

Evolution of computer storage devices. What were they like before and what are they like now?

What is an SSD (Solid State Drive) and what features does it have?

Data storage has evolved over the years, undergoing very obvious changes to replace those punch cards that were used in the past, so currently known as cloud storage.

saving information years ago It was something extremely difficult, since if we wanted to save a photo, a video or any type of document that was not so heavy, we had to split the files and save them on multiple floppy disks.

There were some where to store the information it was much more complicatedHowever, today we are lucky that this is behind us.

Computer storage devices have been modified over time, since years ago normally punch cards were used to be able to save the data and even transmit them.

However, This technique began to be used in the 1950s.where about 960 b could be saved, through card perforations that were represented by zeros (0), unlike the spaces that were not perforated, which were represented by ones (1).

On the other hand, magnetic strips were worth 10,000 punch cardsbeing able to have these an extension of between 2,400 and 4,800 feet, for which 5 to 10 MB could be saved.

Likewise, we found the floppies 5.25 inch, which evolved rapidly due to the fact that users used them constantly for being portable. These could store about 1.2 MB. While 3.5 inch hard driveswere popular due to their mix of portable and long-lasting durability, for which they could store about 1.44 MB.

Later, at the beginning of the In the 1990s, CDs began to hit the market., where much more data could be stored than a floppy disk. But at the end of those years the ZIP disk appeared, where you could store between 100 and 750 MB. Then came the flash driveswith which between 8 MB and 256 GB could be stored, being a great development for technology.

Also, there appeared portable hard drivesso that the user could store between 25 GB and 4 TBand which were extremely essential to be able to make backups of files that were large in size, such as videos.

Finally, today we have the cloud storagewhere you can save any type of information or file through the cloud.

Currently, convenience is used a lot and the number of data that can be stored has been limited. The different types of storage that are in the clouds have made it possible to access our files wherever we arefor which you only need to have an Internet connection.

This cloud runs remotely, although if you want to have much more space you should look for a paid version, and thus have a unlimited storage.


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