Full Form Of USB

What Is The Full Form Of USB? Types, Versions.

USB Full Form: USB is a very common term that is widely used in the world of computers and laptop devices. It is a general term that every person should be aware of in modern times. Here, we are going to share in-depth information about USB. So tighten up your seats and let’s begin.

Full Form Of USB

Full-Form Of USB

Many people don’t know the full form of USB. USB is an abbreviated form of Universal Serial Bus.


USB or Universal Serial Bus is an industry-standard that is used to define the cables and connectors that are required to build a connection between devices, for communicating with other units, and for power supply between devices.

It was designed to support data transfer between computers and to provide power supply and connecting devices like mouse, keyboard, media players, disk drives, etc.


Just to mention a brief history of USB, it was developed by an Indian-American computer architect named Ajay V. Bhatt. In 1994, a group of seven companies named Compaq, DEC, IBM, Microsoft, Intel, NEC, and Nortel came together for the invention and Ajay V. Bhatt headed the group. Initially, USB was developed for easy connection of external devices to a PC.


The most commonly known versions of USB are 1.0, 2.0, and 3.0. Recently, the latest version of USB i.e. USB version 4.0 has been released. Let us provide you brief information about all the versions and their uses.

USB version 1.0

USB 1.0 is the original version that was released back in 1996. It supported the speed up to 1.5 MB/s. It was the earliest version that had faced many limitations while connecting devices to computers.

USB version 2.0

USB 2.0 was released in the year 2000 and had a speed of up to 60 MB/s. This particular version came with separate ports to be installed on your computers if you were to use it.

USB version 3.0

USB 3.0 was published in the year 2008. The main reason behind its release was to increase the data transfer rate up to 630 MB/s, reduce power consumption, and be compatible with previous version USB 2.0 devices and ports.

USB version 4

USB 4 was released in 2019. It is the latest version with high-speed data transfer of up to 5 GB/s. Along with this, it is backward compatible with USB2.0 and USB3.0 also. The products compatible with USB4 are yet to hit the market later this year.

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There are various types of USBs in the market with varying standards. We have listed them for you to have in-depth knowledge about USBs and their types.

USB Type A

It is available on the ends of every USB cable. Also, it is a standard connector used in computers to offer a downstream connection. It is a traditional USB host port that is easily recognizable and is available on almost all the laptops and computers. The USB port visible on a smart phone’s charger is called a ‘Type A’ port.

USB Type B

This one is designed for upstream connections. You will typically find this port on larger devices that are connected to your computers like printers and scanners. These are slowly phasing out with more refined options for the connections between devices.

USB Type C

It is the latest USB type that is able to transmit both data and power through a single cable. The charging port on your smartphones is the type C port that attaches the other end of the charging cable i.e. type C end with your phone. That is why a single cable can function as a charging cable and also as a data transfer cable.

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Uses of USB

The basic use of USB is for data transfer from one device to another. But let us see some more uses where a USB proves to be very helpful.

Backup & Storage: There are high chances your computer may get infected by unwanted viruses that can corrupt your data and you may face serious trouble retrieving it. So the USB flash drive comes in handy in such cases. You can always back up and save your important data on USB drives.

Next, there may be scenarios where you may suffer a space crunch on your device. So the best option is to transfer your data in USB drives to free the space on laptops and computers.

They can be used to run standalone applications on your computers. There are several applications that can be run on your devices without the need for installation in the computer directly through USB drives.

Advantages of USB

1. USB is a cheap and robust connecting system.

2. It has very low power consumption.

3. Up to 127 USB peripheral can be connected to a computer in one go.

4. They are available in various sizes as per the users’ requirements.

We hope this article was able to answer all your queries regarding USB also we have shared the full form of USB. We tried to cover all the important points here which are worth knowing and prove to be helpful to you in the future.

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