Almost everyone would know and use the Universal Serial Bus

Almost everyone would know and use the Universal Serial Bus, or better known as USB. USB definition itself is a way of communication between the Host Controller hardware (usually a PC).

USB is often found on the printer, computer, scanner, phone, mouse, digital cameras, flash drives, etc.. Before any USB, serial port first known and parallel. But for now, the USB port has become the standard communications port.

USB 2.0

USB 2.0 technology was introduced in about April 2000. For the transfer rate (transfer rate), USB 2.0 can reach a maximum of 480 Mbit / sec. However, in practice, rarely get USB 2.0 speeds above 300 Mbit / sec. In addition, USB 2.0 requires a power supply of 500mA maximum. As for the pin plug on the USB 2.0 consists of 4 pieces.

Types of USB port

USB 3.0

Unlike with USB 2.0, USB 3.0 technology introduced since 2007. The advantages brought by the USB 3.0 when compared to USB 2.0 is the data transfer speed (transfer rate) that can reach 5 Gbit / sec. Wow, almost 10x USB 2.0 right? Another difference is the length of data cable problems. If the USB 2.0, you are advised manambah with a maximum cable length of 3 M to keep the data transfer speed remains accurate. In the USB 3.0 cable length is no longer a factor that affects the speed of data transfer. In addition, USB 2.0 requires a power supply of 900 mA maximum.

Another advantage of USB 3.0 USB 2.0 is compared with its full duplex, meaning that the USB host can send and receive data continuously. As for the pin plug, USB 3.0 has a pin amounted to 5 pieces.

Weaknesses USB 3.0

One drawback of USB 3.0 is no support from the operating system. In the meantime, you have to install additional drivers from the vendor in order to support USB 3.0 technology. In addition, a new bit of hardware (hardware) that has USB 3.0 support. Therefore, only a few among many who have tasted this USB 3.0 technology.

Of exposure to the above, it can be concluded that the differences are quite striking between USB 2.0 and USB 3.0 is the speed of data transmission, that is 400 Mbit / sec for USB 2.0 and 5 Gbit / sec for USB 3.0.