Almost everyone
of course get to know and use the Universal Serial Bus or USB is colloquially
known as. The definition itself is a way of USB communication between equipment
with a Host Controller (usually a PC).
This is often
found on the USB printer, scanner, computer, mobile, mouse, digital camera,
flash drive, etc. There was even once known USB, serial and parallel ports. But
for now, the USB port has become standard communication ports.
USB 2.0
USB 2.0
technology introduced in around April 2000. To transfer speed (transfer rate),
USB 2.0 can achieve a maximum of 480 Mbps. However, in practice, rarely get USB
2.0 speeds above 300 Mbps. In addition, the USB 2.0 requires a maximum of 500mA
power supply. The pin plug in USB2.0 amounted to 4 pieces.
Type-type of
the USB port
USB 3.0
Unlike USB 2.0,
USB 3.0 technology was introduced since 2007. Excellence lead by USB 3.0 when
compared to USB 2.0 data transfer is the speed (transfer rate) which is capable
of up to 5 Gbit/s. Wow, almost 10 x folding USB 2.0 right? The other difference
is the length of data cable problem. If on USB 2.0, you suggested to add cable
length with a maximum of 3 M to keep data transfer speed remains accurate. In
USB 3.0, cable length is no longer a factor that affects the speed of data
transfer. In addition, the USB 2.0 requires maximum power supply of 900 mA.
Another
advantage compared with USB 3.0 USB 2.0 is its full duplex, meaning that USB
host can perform send and receive the data continuously. As for the pin plug,
pin USB 3.0 has amounted to 5 pieces.
Weakness of USB
3.0
One of the
flaws is no USB 3.0 support from the operating system. In the meantime, You
need to install additional drivers from its vendors are in order to support the
USB 3.0 technology. In addition, a new bit of hardware (hardware) which already
support USB 3.0. Therefore, only a little of people 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 rate of speed data transmission, IE 400 Mbps
for USB 2.0 and 1 Gbit/s for USB 3.0.
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