Is the ZAGG invisibleshield any good?
April 12, 2011 in General Questions, Miscellaneus, Product Reviews by AAG-ArchivedMessages
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Are laptop locks realy secure?
April 12, 2011 in General Questions, Miscellaneus by AAG-ArchivedMessages
by The Geek
A+ Wireless Speeds, Frequencies, and Ranges
April 11, 2011 in A+, Certification Training by The Geek
Certification Training: A+ Wireless Speeds, Frequencies, and Ranges
Wireless transmission speeds
802.11 1-2 Mbps
802.11a 54 Mbps
802.11b 11 Mbps
802.11g 54 Mbps
Wireless Frequencies
Bluetooth 2.4Ghz
802.11 2.4Ghz
802.11a 5.0Ghz
802.11b 2.4Ghz
802.11g 2.4Ghz
802.11n 2.4Ghz OR 5.0 Ghz
Approximate Distance Range
802.11a 50 meters
802.11b 100 meters
802.11g 100 meters
by The Geek
A+ Windows Boot Process
April 11, 2011 in A+, Certification Training by The Geek
Certification Training: A+ Windows Boot Process
The Windows Boot Process occurs in the following order:
ntldr
boot.ini
ntdetect.com
dtbootdd.sys
ntldr
The NT loader is used to load the Windows NT kernal. This relies on both boot.ini and ntdetect.com. The NT loader is located in %systemroot%.
boot.ini
The boot.ini is a configuration file used by NTLDR to load the operating system. The boot.ini file is located in %systemroom%.
ntdetect.com
The ntdetect.com detects and loads various hardware devices and it uses the hardware keys found in the registry.
ntbootdd.sys
The ntbootdd.sys is an alternate loader file used when the main disk is SCSI-based instead of IDE. The ntbootdd.sys is not handled by the BIOS firmware.