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Chapter 5
Appendix
Sleep Mode
A power mode that enables computers to save power consumption
when they are not being used. When a computer is in Sleep Mode,
the data on the computer memory is not saved to the hard disk. If
the power is turned o, the data in memory will be lost.
System File
System Files refer to les that are read and used by the Windows
operating system. In general, system les must not be deleted or
moved.
TCP/IPv4
This is a 4 byte (32 bit) address system separated into each byte
(8 bits) by a dot and each byte is represented as a decimal number.
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.
Virtual XP Mode
This is a virtual operating system that enables running Windows XP
programs on the Windows 7 operating system. Using this mode,
you can run programs that do not run on Windows 7.
Windows Media Player
A multimedia program included with Windows. Using this
program, you can play a media le, create an audio CD, listen to a
radio broadcast, search and manage media les, and copy les to a
portable device, etc.
Glossary