What is the Difference Between Similar But Different Things, Terms, and Objects

What is the Difference between Usb 2.0 and Usb 3.0

Universal serial bus or USB is the external device to computers. It is the external storage that has the most common use of data transfer. When USB 1.0 was introduced it was considered as a blessing even with the less data storage and slow data transfer features. Then come USB 2.0 and now in-use data storage is USB 3.0.