6.1. Introduction to USB Drive/CD/DVD

From the time computers were made, there has been a need to move data from one device to another or store it permanently. You might want to look at a file you made or a picture you took today after a year has passed. For this, it needs to be kept in a safe place. In the same way, you might want to give someone you know a document you made or a digital picture you took. This can be done in many ways, both online and off. When transferring or storing data online, you need to use the Internet. Offline storage, on the other hand, can be done with little effort. In this case, all that would be needed is a way to store the information.

In the past, the most common way to store data was on Floppy drives, but they had only a small amount of space.

But as computer technology has improved, we have now flash drive, Disc devices, and other types of removable media to store and move data. With all these, users can save, copy, and store information, pictures, videos, audio, etc. in folders on your computer. You can send them to another computer as well. These things are called secondary storage devices. To get to the information on these devices, users have to connect them to a computer. External storage devices are things like pen drives, CDs, as well as DVDs.

A flash drive or flash drive is a small drive that runs on its own power and plugs into a computer’s USB port. This device lets you read, write, copy, delete, and transfer files from Flash drives (Pen drives) to the hard drive of your pc and back again. It is a rewritable medium, which means that the information it stores can be erased or replaced as needed. Most of the time, they can hold between 1 GB and 64 Gigabytes of data.

CD/DVD is another way to transport data, but it can’t hold as much information as a pen drive. The CD (Compact Disc) is a storage device that can hold 650 MB or 700 MB of information. DVD stands for “Digital Versatile/Video Disc.” It is a storage medium that can hold more audiovisual data than a CD of the same size. (A single-layered DVD can hold just over 4 GB of information.)