Samsung NP-X22-K01-SEA - Manual (Page 185)

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USB (Universal Serial Bus)
This refers to a serial interface standard developed
to replace the conventional interface standards such
as Serial and PS/2. While USB 1.1 supports 12Mbps
(12 million bits per second), USB 2.0 supports a data
rate that is 40 times (480Mpbs) faster than that of USB
1.1. The data rate of USB 2.0 is equivalent to that of
IEEE1394. Therefore USB 2.0 is used for A/V devices
supported by IEEE 1394 and a 2nd HDD and CDRW
that require a high data rate.
Windows
The name of an operating system developed by the
Microsoft Corporation. Windows XP is installed on this
computer.
Windows Media Player
A multimedia program included with Windows. Using
this program, you can play a media file, create an audio
CD, listen to a radio broadcast, search and manage
media files, and copy files to a portable device, etc.