Almost everyone would know and use the Universal Serial Bus, or better known asUSB. Definition of USB itself is a way of communication between the Host Controllerequipment (usually a PC).
USB is often found in printers, computers, scanners, mobile phone, mouse, digitalcameras, flash drives, etc.. Before any USB, first known serial and parallel ports. Butfor now, the USB port has become the standard communications port.
USB 2.0 technology was introduced in about April 2000. For the transfer rate (transferrate), USB 2.0 can reach a maximum of 480 Mbit / sec. But in practice, rarely getUSB 2.0 speeds above 300 Mbit / sec. In addition, USB 2.0 requires a maximumpower supply of 500mA. As for the pin plug in a USB 2.0 consists of 4 pieces.
Unlike with USB 2.0, USB 3.0 technology introduced since 2007. The advantagesbrought by the USB 3.0 when compared to USB 2.0 is a data transfer rate (transferrate) that can reach 5 Gbit / sec. Wow, almost 10x USB 2.0 right? Another differenceis the length of data cable problems. If the USB 2.0, you are advised manambahcable length with a maximum of 3 M to keep the data transfer speed remainsaccurate. In USB 3.0, the cable length is no longer a factor that affects the speed ofdata transfer. In addition, USB 2.0 requires a maximum power supply of 900 mA.
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 3.0has a pin amounted to 5 pieces.
Weaknesses of USB 3.0
One drawback of USB 3.0 is no support from the operating system. While this, youmust install additional drivers from the vendor in order to support USB 3.0 technology.In addition, the new bit of hardware (hardware) which already supports USB 3.0.Therefore, only a few among many who have tasted the USB 3.0 technology.
From exposure to the above, it can be concluded that the differences are quite striking between USB 2.0 and USB 3.0 is the level of data transfer speed, that is 400Mbit / sec for USB 2.0 and 5 Gbit / sec for USB 3.0.