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Topic: Universal Serial Bus


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USB

  
  Universal Serial Bus (USB*) Overview
USB is arguably the most successful interconnect in computing history.
USB is now a standard feature on all PCs and makes it much easier for users everywhere to plug in everything from digital cameras to MP3 players to their PCs.
The specification for USB 2.0 was approved in April 2000.
www.intel.com /technology/usb   (0 words)

  
  Universal Serial Bus (USB)
The USB connection is of course serial, and the current version (1.1) runs with a maximum throughput of 12 Mbits/second (1.5 Mbytes/second), which is shared by all devices.
USB's initial acceptance was relatively slow in coming, but once it got going, the variety of USB devices that appeared on the market surprised many people, probably including its developers.
USB remains popular for hard disks and other storage devices for those who don't have other options; however, in almost every case a higher-speed interface is a better idea if that's at all possible.
www.storagereview.com /guide2000/ref/hdd/if/sfUSB.html   (607 words)

  
  USB - Universal Serial Bus
USB is a standard port that enables you to connect external devices (such as digital cameras, scanners, and mice) to Windows 98 and Macintosh computers.
USB is known as a plug and play interface between a computer and a peripheral, such as a mouse, keyboard, digital camera, printer or scanner.
USB ports actually also provide a 5v power supply, so many devices can be powered directly from your computer (or the hub), so the device may connect to the outside world with only one cable.
www.auditmypc.com /acronym/USB.asp   (1052 words)

  
 Universal Serial Bus
Universal Serial Bus, or USB, is a computer standard designed to eliminate the guesswork in connecting peripherals to your PC.
The major goal of USB was to define an external expansion bus which makes adding peripherals to a PC low cost and as easy as hooking up a telephone to a wall-jack.
USB featured a maximum bandwidth of 1.5Mbit for low speed devices such as mice and keyboards, and a maximum bandwidth of 12Mbit for higher speed devices such as web cams, printers, scanners and external CD-RW drives.
www.siliconimaging.com /universal_serial_bus.htm   (0 words)

  
 Universal Serial Bus - USB
Short for Universal Serial Bus, USB is a standard that was introduced in 1995 by Intel, Compaq, Microsoft and several other IT computer companies.
USB 1.x is an external bus standard that supports data transfer rates of 12 Mbps and is capable of supporting up to 127 peripheral devices.
Hi-speed USB is capable of supporting a transfer rate of up to 480 Mbps and is backwards compatible, meaning it is capable of supporting USB 1.0 and 1.1 devices and cables.
www.computerhope.com /jargon/u/usb.htm   (186 words)

  
 [No title]
USB (Universal Serial Bus) is a new external bus developed by Intel, Compaq, DEC, IBM, Microsoft, NEC and Northern Telcom and released to the public in 1996 with the Intel 430HX Triton II Mother Board.
USB was designed from the ground up to be an interface for communicating with many types of peripherals without the limits and frustrations of older interfaces.
It provides a 10Mbit/sec serial connection, plus 5v power, for up to 127 peripherals daisy-chained from hubs, and is expected eventually to replace both the serial and parallel ports.
www.lycos.com /info/universal-serial-bus.html   (508 words)

  
 Universal Serial Bus
The solution to the problem was a universal connection that would have access directly to a serial bus, thus producing the name Universal Serial Bus.
There had to be a structure designed for the USB to peripheral interface for software, and a USB to bus interface on the hardware.
USB 2.0 achieves better speeds by the use of a 40X multiplier, and is estimated electrically to be able to support 480 Mbps (USB-IF USB20.pdf).
tomeboy28.50megs.com /USB.html   (2891 words)

  
 USB Universal Serial Bus notes
USB is the Universal Serial Bus for connecting peripherals to a PC.
Uses a universal plug and a universal A to B cable (the A to A cables you sometimes see are wrong and not permitted).
USB is a packet oriented serial bus, in which the first (and possibly only) packet is always a token (control) packet.
www.ericlindsay.com /computer/usb.htm   (1321 words)

  
 Microsoft Windows CE: Universal Serial Bus (USB) Support
USB was not designed to be used as the internal bus for connecting CPUs to main memory and other motherboard-resident devices.
USB is a tree-structured bus, which in the vocabulary of the USB developers organization is called a "Star-Tier topology".
USB devices consist of one or more "interfaces", which are the physical components of the peripheral that implement the device's abilities.
www.microsoft.com /technet/prodtechnol/wce/support/usbce.mspx   (3435 words)

  
 Universal Serial Bus - Search Results - MSN Encarta   (Site not responding. Last check: )
Universal Serial Bus - Search Results - MSN Encarta
Universal Serial Bus, external bus interface supporting data transfer and exchange at a maximum transmission rate of 480 million bits per second...
Natural World, The (quotations): Nature: The bus windows were open.
uk.encarta.msn.com /Universal_Serial_Bus.html   (113 words)

  
 Information on the Universal Serial Bus, Part I
Of the many new serial protocols that have popped up in response to these problems, USB (Universal Serial Bus) currently seems to be reigning supreme.
When a device is connected to a host's USB bus, it is immediately recognized by the host, dynamically enumerated, and assigned an address by the host.
USB Implementers Forum, Inc. is a non-profit corporation formed by a group of companies that developed the initial USB specification.
www.sss-mag.com /usb.html   (2859 words)

  
 USB (Universal Serial Bus) - Glossary Entry - Mobile Phone Directory
Universal Serial Bus The universal serial bus (USB) is a cable communication standard that allows various diverse devices to be connected and communicate.
USB also allows power to be supplied in the same cable as data - an early example of the usefulness of this feature was the advent of speakers that required no external power.
USB’s power transfer can also be used to recharge battery powered devices such as mobile phones and MP3 players.
www.mobile-phone-directory.org /Glossary/U/USB.html   (0 words)

  
 USB Central
USB Multi-Role Device Design By Example is a new book by John Hyde and a free download from Cypress (PDF).
Jungo.com's WinDriver USB is an enhanced version of Jungo's Driverwizard, which enables developing driver code in user mode and later moving it to kernel mode.
MCCI has a free USBRC (Universal Serial Bus Resource Compiler) that translates a plain-text description of a USB device into C data initialization structures to be placed in ROM.
www.lvr.com /usb.htm   (3811 words)

  
 Howstuffworks "How USB Ports Work"
These USB connectors let you attach everything from mice to printers to your computer quickly and easily.
The operating system supports USB as well, so the installation of the device drivers is quick and easy, too.
The goal of USB is to end all of these headaches.
www.howstuffworks.com /usb.htm   (447 words)

  
 USB Serial Adapter RS-232 Serial Adapter USB serial ethernet to serial PCMCIA serial, ISA Serial Multi I/O RS-422 and ...
USB to Serial Adapters (RS232, RS422 & RS485)
USB To Serial Adapter Belkin USB Serial Adapter USB Serial Adapter Drivers USB Serial Adapter Brands Ac Usbs Serial Adapter Omega USB Serial Adapter 4 Port USB Serial Adapter USB to RS-232/RS-485 Converters.
Serial Gear USB BAY-4 Port Serial DB-9 RS-232 Adapter with FTDI Chipset
www.serialgear.com   (0 words)

  
 USB 2.0, Hi Speed USB FAQ
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.
USB flash drives have also reached 33MByte/s, but there seems to be some limitations in the NAND itself so you shouldn't expect their speeds to skyrocket in a next year or two.
USB hub ports are not as capable or flexible as real PC ports so it's best not to expect the world of them.
www.everythingusb.com /usb2/faq.htm   (2021 words)

  
 What is USB? - a definition from Whatis.com - see also: , Universal Serial Bus
USB (Universal Serial Bus) is a plug-and-play interface between a computer and add-on devices (such as audio players, joysticks, keyboards, telephones, scanners, and printers).
With USB, a new device can be added to your computer without having to add an adapter card or even having to turn the computer off.
The USB peripheral bus standard was developed by Compaq, IBM, DEC, Intel, Microsoft, NEC, and Northern Telecom and the technology is available without charge for all computer and device vendors.
whatis.techtarget.com /definition/0,,sid9_gci214166,00.html   (281 words)

  
 Universal Serial Bus
Universal Serial Bus (USB) is an initiative originally proposed by Intel, Compaq, and Microsoft back in 1995.
USB allows user to add a device while the system is turned on; USB will then automatically enumerate the new device, load the driver, and allow the user to use it.
Peripheral makers were waiting for system manufacturers to integrate the USB port into their system, and PC makers were waiting for peripheral designers to create USB devices first.
www.cpucare.com /FAQS/universal_serial_bus.htm.old   (363 words)

  
 USB Interface Bus Description, USB Pinout and Signal Names. Universal Serial Bus
USB Hubs allow connection to a USB bus, while USB Functions are the devices which perform some function.
USB may operate at any speed from 10kbps to 400Mbps in one of three speed modes.
A Slow-Speed mode of 10kbps to 100kbps is used for devices such as a USB keyboard or USB mouse.
www.interfacebus.com /Design_Connector_USB.html   (909 words)

  
 USB, Universal Serial Bus
The universal serial bus is a standard for connecting serial devices in a network fashioned way.
The standard USB cable which is used for 12 Mbps and has an A-series connector consists of one pair 20-28 AWG wire for power and one 28 AWG twisted pair for data.
Within the USB specifications there are a couple of different device classes specified.
ckp.made-it.com /usb.html   (647 words)

  
 USB CABLES, UNIVERSAL SERIAL BUS
This is done by attaching resistors to the ends of the bus which have the same resistance as the characteristic impedance of the transmission line.
Passive Terminators use a group of resistors on the physical ends of a single-ended SCSI bus that dampens reflected signals from the dneds of the bus.
Termination must be present at two and only two positions on the SCSI bus at the beginning and at the end.
www.connectworld.net /ocp/wa405.htm   (1201 words)

  
 [No title]
The new standard in personal computers is USB (universal serial bus) for interfacing virtually every peripheral, including keyboard, mouse, external disk drives, scanners, printers, and special purpose peripherals.
USB is fast, flexible, hot-pluggable, and compatible with all new makes of personal computers, including both desktops and laptops.
New USB applications can be up and running in a matter of days in prototype form.
www.jged.com /web_pages/usbsimm.html   (526 words)

  
 Universal Serial Bus (USB*) Frequently Asked Questions
USB 2.0 was developed by seven industry-leading companies, collectively named the USB 2.0 Promoter Group: Compaq, Hewlett-Packard, Intel, Lucent, Microsoft, NEC, and Philips.
USB On-the-Go addresses the growing need for mobile interconnectivity by allowing a USB peripheral to communicate directly with another USB peripheral.
USB Design by Example, Second Edition by John Hyde provides you with the expert knowledge and skills you need to design and implement a wide range of USB devices.
developer.intel.com /technology/usb/faq.htm   (321 words)

  
 Computer mainboards and PCB technology - Universal Serial Bus - USB. Links999.
Like the SCSI connection, the new serial connection, USB, allows for several peripherals to be connected in a daisy chain fashion; the next device is plugged into the previous, and so forth up to 128 devices maximum.
At the Las Vegas Comdex 111 devices were connected in this fashion to prove the worth of the USB port.
USB is faster than the old 9-pin serial connections, and can take the place of the PS2 mouse and keyboard sockets, game connectors and other traditional ports.
www.links999.net /technology/mainboard/mainboard_USB.html   (103 words)

  
 Sealevel PCI Bus Serial and Digital I/O Products
Sealevel Low Profile Universal Bus PCI boards are designed for many of today’s newer computers that do not include standard size PCI slots.
Each Low Profile Universal Bus PCI board meets the requirements for the MD1 Low Profile specification as defined by PCISIG in PCI 2.2 "Low Profile Addendum".
The Zilog Z16C32 Integrated Universal Serial Controller (IUSC) includes a built-in DMA controller, 256 bytes of static memory, and a 32-byte FIFO for fast, error-free synchronous communications.
www.sealevel.com /categories.asp?category_id=13&Sealevel_PCI_Bus_Serial_and_Digital_I/O_Products_   (0 words)

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