Everyone has connected at least once two devices through the USB interface. Whether we talk about flash memory sticks or other peripherals such as printer, many devices use the standard connector USB.
What does USB means?
USB is an acronym for the Universal Serial Bus that defines the cables, the connectors and the protocols used in the communication between devices. It was designed in 1996 by a group of seven companies including Microsoft, Compaq, IMB, Intel, DEC, NEC and Nortel. Their aim was to standardize the connectivity between peripheral devices such as printer, mice, keyboards and computers.
These companies have searched to replace the multitude of connectors, to eliminate the problems that interfaces at that time had and to simplify the software configuration of all devices that were to connect via USB, as well as to improve the data transfer speeds.
USB has become a successful standard, and now it is used by many devices. Today there is no computer that does not come with at least one USB port.
Types of USB connectors
There are two types of USB connectors: Standard A and Standard B.
Nowadays, almost any device that you can buy can connect to the computer through the USB interface, whether it is a keyboard, a mouse, a Smartphone, a printer o any other object of this kind. Even a device designed and built by you can be connected to your personal computer.
USB interface also allows the exchange of energy between computers and electronic devices. That means, for example, that a Smartphone’s battery will charge as long as it will be connected to the computer via USB.
To use this new technology on smaller devices such as mobile phones, portable games consoles or other devices of this kind, in October 2000 was released the Mini USB port. This connector is rated at 5 000 cycles connection – disconnection and it was used by PDAs and by the first Smart phones.
In 2007, it was to be announced the Micro USB. The new connector is thinner than its predecessor, Mini USB, and it was created with the intention to replace it. The Micro USB connector promises at least 10.000 connect-disconnect cycles, double as the Mini USB. It has revolutionized the way of connection of portable devices, which made the new connector to be recognized as being the standard interface for the exchange of data and electric energy for the mobile devices.
And in the end a conclusion:
Currently, many connections between devices are made through the USB interface. Even if there were found some vulnerabilities, it is very hard to give it up because there are not many alternatives equally good.