Continually in the world of technology tools are created to make life easier for humans. And it is that the technological developments however small are creating a huge impact worldwide.
Humanity is still stunned by each of the discoveries of the brightest minds and is that behind these ideas there is a great effort. One of these fascinating creations is the USB , you can buy a USB memory Amazon. But we must first know what this so get into more details respect.
What it is USB?
Universal Serial Bus or simply by the acronym USB, is a channel with a digital system that allows the transfer of data between devices. It was developed by a group of companies such as Intel, IBM, Microsoft and other companies more, this was released to the market in 1996.
Today, most people documents and files transferred through these USB memories, and it is very easy connect a USB memory cell to transfer files.
It has a structural standard for cables, connectors and communication protocol, thus fulfilling its goal of exceptional interface. Whether computers, peripheral devices or electronic devices via the USB connection exists and communication between these continuously.
Capable of providing a electrical current, and this way load devices without an external agent involved. It features Plug & amp technology; Play, ie to be connected a device the procedure is activated automatically.
Differences Between USB 2.0 and USB 3.0
In version 2.0 the direction of transfer is one-sided , information is received or sent, but can not simultaneously. However, version 3.0 has a bilateral transfer direction, allowing make both processes simultaneously.
The transfer rate is 2.0 up to 480 Mbit/s (60 MB/s), High Speed, whose real rate is 280 Mbit/s (35 MB/s). In 3.0 to 4.8 has one of Gbit/s (600 MB/s), Superspeed.
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The power supply is 500 mA 2.0, while version 3.0 is 900 mA. USB 2.0 is a cable has four lines, two for data and two for food. The 3.0 cable has nine lines to the optimization .
Types of connectors
On the other hand, how many connector types are there? What versions use these connectors? Here we show five types of these:
- USB type A:. Used by versions USB 1.0, 2.0, 3.0 and 3.1 In version 3.0 is distinguished by a tab blue inside, but has its speed is less than <./li>
- USB Type B: normally used in printers or scanners. There are two types one for versions 1.0 and 2.0, and one for the 3.0 with their respective blue tint in their interior.
- USB Type C: Latest generation to be reversible, can connect devices on both sides without any problems, used in 3.0 and 3.1
- Mini USB: Commonly used in cameras and mobile devices , either A or mini mini B are compatible with versions 1.0 and 2.0
- Micro USB: Among the most used in small devices, if micro A B is for 1.0 and 2.0, and if micro functional B for 1.0 and 0.2.
3.0 and 3.1 latter changes a little blue and always being present inside.
What is better in speed version 2.0 or 3.0 ?
As we saw earlier in the differences in the two versions of the USB standard, there is a big difference in speed. What it makes it remarkable that version 3.0 has a faster speed than the version 2.0 is your SuperSpeed technology.
In addition, it is due to the inclusion of five more contacts in structure, allowing an increase in performance version. Since two of its cables serve for information, while two others to send, and the other five for supplying electrical current.
So test yourself! Apply what you’ve learned today, see if you can distinguish the USB ports of your devices.
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On the other hand if want a DVD copy videos from your USB Flash Drive this article interests you. Continues to learn everything related to USB ports and discover how you can access the drive connected to the USB port of your router.
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