Meaning of USB

What is USB:

USB is the acronym for Universal Serial Bus which translates to universal serial port and is the most common type of input and output on a computer for the connection of computing devices.

In computing, USB memory or pen drive is a type of portable storage flash memory that uses a port with the USB format.

See also Memory.

USB ports were introduced in 1997 but only became popular with the incorporation of this type of input port in Apple iMac computers in 1998.

USB ports are used to connect all kinds of devices such as keyboards, mice, printers, memories, hard drives, scanners, cameras, among others.

See also Input and output devices.

USB cables, ports and inputs have had three major versions that differ in the transmission speed of the number of megabits per second (Mbps) of information, as summarized below:

  • USB 1.1.: maximum transmission speed of 12 Mbps.
  • USB 2.0.: maximum speed of 480 Mbps.
  • USB 3.0.: maximum speed of 5,120 Mbps (5 Gbps).
  • USB 3.3.: maximum speed of 10,240 Mbps (10 GBPS).

See also Mbps.

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