| 1.What
is the difference between1.0, USB 1.1 and USB 2.0?
USB 1.0 can operate at 1.5 Megabits per second (Mbps).USB 1.1
allowed a maximum transfer rate of 12Mbits/second. USB...
USB 1.0 can operate at 1.5 Megabits per second (Mbps). USB 1.1
allowed a maximum transfer rate of 12Mbits/second. USB mice and
keyboards need only 1.5Mbits/s to function. That performance level
is also named 'USB'. USB 2.0 has a raw data rate at 480Mbps, and
it is rated 40 times faster than its predecessor interface, USB
1.1, which tops at 12Mbps. Originally, USB 2.0 was intended to
go only as fast as 240Mbps, but then, USB 2.0 Promoter Group increased
the speed to 480Mbps in October 1999. You can use USB device with
USB 1.0, USB 1.1 and USB 2.0 as long as your PC or laptop has
USB ports, but USB 2.0 device transfer data at 480 Mbps on systems
with USB 2.0 support only.
2.Where
can I find the drive and utility for USB bar?
You can find the driver and utility from the enclosed CD-ROM or
download it from our website.
3. What is the difference
between Bluetooth wireless technologies and other technologies,
such as UWB, 802.11g, 802.11a, 802.11b, WLAN, Wi-Fi, AirPort,
Infrared, and Zigbee?
While there are many differences, key among them are range, power
consumption and intended use. Bluetooth wireless technology in
its most common implementations has a range of 30 feet (10m),
is low price-power consuming, designed for battery operated mobile devices
and provides voice, data and audio connections between devices.
|
