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"Mobile computing" is a generic term that refers to technologies that allow you to take your computer with you.There are three basic genres of mobile computing. The first uses mobile computers. These are computers or similar devices that are designed for mobile use. They include notebooks, PDAs, and mobile phones. The second genre is remote connection. This type of mobility allows you to connect to your computer from remote locations and work as though you were sitting in front of it. The final type of technology is known as Desktop Virtualization.
Difference Between USB 3.0 and USB2.0
USB (Universal Serial Bus) 3.0
USB 3.0 has transmission speeds of up to 5 Gbit/s, which is 10 times faster than USB2.0 (480 Mbit/s). USB 3.0 significantly reduces the time required for data transmission, reduces power consumption, and is downward compatible with USB 2.
USB (Universal Serial Bus) 2.0
It is also referred to as Hi-Speed USB, USB 2.0 is an external bus that supports data rates up to 480Mbps. USB 2.0 is an extension of USB 1.1.
What is Bluetooth ?
Bluetooth is an open wireless technology standard for exchanging data over short distances (using short wavelength radio transmissions) from fixed and mobile devices, creating personal area networks (PANs) with high levels of security.