Universal Serial Bus (USB) is an industry standard developed in the mid-1990s that defines the cables, connectors and communications protocols used in a bus for connection, communication and power supply between computers and electronic devices.
USB was designed to standardize the connection of computer peripherals, such as keyboards, pointing devices, digital cameras, printers, portable media players, disk drives and network adapters to personal computers, both to communicate and to supply electric power. It has become commonplace on other devices, such as smartphones, PDAs and video game consoles. USB has effectively replaced a variety of earlier interfaces, such as serial and parallel ports, as well as separate power chargers for portable devices.
As of 2008, approximately 6 billion USB ports and interfaces were in the global marketplace, and about 2 billion were being sold each year.
Read more about Universal Serial Bus: History, System Design, Device Classes, Physical Appearance, Cabling, Power, Signaling, Transmission Rates, Latency, Communication, Interoperability, Related Standards
Famous quotes containing the words universal, serial and/or bus:
“Really to see the sun rise or go down every day, so to relate ourselves to a universal fact, would preserve us sane forever.”
—Henry David Thoreau (1817–1862)
“An autobiography is an obituary in serial form with the last instalment missing.”
—Quentin Crisp (b. 1908)
“There was an old man from Darjeeling
Who got on a bus bound for Ealing.
It said at the door,
“Please don’t spit on the floor,”
So he carefully spat on the ceiling.”
—Anonymous.