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5: How will consumers benefit from USB 2.0? |
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 With speed 40 times more than that of USB 1.1, USB 2.0 broaden the range of external peripherals that can be used on a computer. Even with multiple high-speed peripherals connected to a USB 2.0 bus, the system will less likely to hit the bandwidth bottleneck. The new specification also inherits the current USB¡¯s Plug and Play and hot-swapping capability as well as providing backward compatibility for USB 1.1 hardware, allowing existing user base to upgrade seamlessly. |
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4: Will Firewire™ (IEEE 1394) replace USB? |
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 No. Although IEEE 1394 is a faster standard for connecting peripherals, it is also much more expensive as a technology. In the future both USB and Firewire? will combine to meet the needs of computer users as complimentary technologies. Firewire? will be used to connect high-speed video cameras, external hard-drives, and other devices that need more than 12Mb of bandwidth. USB will survive to support printers, scanners, joysticks, modems, keyboards, mice, and other lower speed devices. At approximately 100 times faster than today's serial ports, USB is in a strong position to give a greater level of speed to users at a much more attractive price. |
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3: Speed of USB2.0 |
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 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. |
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2: Who created USB? |
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USB was developed by a group of seven companies that saw a need for an interconnect to enable the growth of the blossoming Computer Telephony Integration Industry. The seven promoters of the USB definition are; Compaq, Digital Equipment Corp, IBM PC Co., Intel, Microsoft, NEC and Northern Telecom. |
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1: What is USB? |
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USB is a peripheral bus specification developed by PC and telecom industry leaders -- Compaq, DEC, IBM, Intel, Microsoft, NEC and Northern Telecom -- that brings plug and play of computer peripherals outside the box, eliminating the need to install cards into dedicated computer slots and reconfigure the system. Personal computers equipped with USB allow computer peripherals to be automatically configured as soon as they are physically attached - without the need to reboot or run setup. USB also allows multiple devices -- up to 127 -- to run simultaneously on a computer, with peripherals such as monitors and keyboards acting as additional plug-in sites, or hubs. |
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