HP Compaq NC4000 User Manual

Wireless (Select Models Only)
Hardware and Software Guide 11–7
Using Wireless Security Features
When you set up your own WLAN or access an existing WLAN,
always ensure that security features are protecting the WLAN. If
you do not enable security on your WLAN, an unauthorized
wireless user can access your notebook data and use your Internet
connection without your knowledge.
The most common security levels are Wi-Fi Protected Access
(WPA)-Personal and Wired Equivalent Privacy (WEP). In
addition to enabling WPA-Personal or WEP security encryption
on the router, you may want to use one or more of the following
security measures:
■ Change the default network name (SSID) and password.
■ Use a firewall.
■ Set security on your Web browser.
■ Enable MAC address filtering on the router.
For more information about WLAN security, refer to the
HP Web site at
http://www.hp.com/go/wireless (English only) for
details.
Installing Wireless Software (Optional)
Microsoft Windows XP supports WLAN configuration with the
Zero Client Configuration feature. HP provides a separate WLAN
configuration utility that must be installed if you plan to use
Cisco Compatible Extensions. Cisco Compatible Extensions
enable wireless devices to use Cicso-based WLANs.

HP Compaq NC4000 Specifications

General

Processor cache	1 MB
Processor model	-
Processor frequency	1.4 GHz
Processor cache type	L2
Processor front side bus	400 MHz
Processor core voltage (AC)	0.956 - 1.388 V
HDD speed	5400 RPM
HDD interface	Ultra-ATA/100
Optical drive type	No
Card reader integrated	Yes
Total storage capacity	40 GB
Compatible memory cards	SD
Number of HDDs installed	1
Pixel pitch	0.264 x 0.264 mm
Display diagonal	12.1 \
Display brightness	130 cd/m²
Display resolution	1024 x 768 pixels
Native aspect ratio	4:3
Display number of colors	16.78 million colors
Type	PC
Modem speed	56 Kbit/s
Power supply type	AC/DC
Power requirements	90 - 264V, 47/63Hz
Wireless technology	Wi-Fi
Graphics card family	AMD
Compatible operating systems	Windows XP
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Memory slots	2x SO-DIMM
Internal memory	0.25 GB
Internal memory type	DDR-SDRAM
Maximum internal memory	1 GB
Audio system	PS
Pointing device	Touchpad
Cabling technology	10/100/1000Base-T(X)
Networking features	Gigabit Ethernet
Operating system installed	Windows XP Professional
TV-out type	S-Video
Charging port type	DC-in jack
USB 2.0 ports quantity	2
Firewire (IEEE 1394) ports	0
Cable lock slot type	Kensington
AC adapter power	65 W
Number of battery cells	6
Operating shock	40 G
Operating altitude	0 - 3048 m
Non-operating shock	240 G
Operating vibration	0.5 G
Non-operating altitude	0 - 9144 m
Non-operating vibration	1 G
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	10 - 35 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 90 %
Certification	UL, CSA, VDE/TUV
Product color	Black, Silver
Country of origin	China

Weight and Dimensions

Depth	233.7 mm
Width	279.4 mm
Height	27.9 mm
Weight	1590 g