HP Compaq NC4000 User Manual

12–22 Hardware and Software Guide
Security
Under some circumstances a firewall can block access to Internet
games, interfere with printer or file sharing on a network, or
block authorized e-mail attachments. If you are using Windows
Firewall and an application attempts an inbound connection to
your notebook for the first time, a security alert will be displayed.
The security alert allows you to configure the firewall permission
for the application.
■ To allow the application to connect to your notebook, select
Unblock this program. The application is added to the
Exceptions list and will not be blocked by Windows Firewall.
■ To permanently block the application, select Keep blocking
this program. Windows Firewall will block the application
anytime the application tries to connect.
■ To temporarily block the application, select Keep blocking
this program, but ask me again later. The next time the
application attempts to connect to your notebook, you will
receive the security alert.
To manually add an application to the Windows Firewall
Exceptions list so that it will not be blocked by the firewall:
1. Select Start > Control Panel > Network and Internet
Connections > Windows Firewall.
2. Select the Exceptions tab.
3. Select Add Program and enter the required information
about the application.
4. Select OK. The application is added to the Exceptions list
and will not be blocked by Windows Firewall.
If you are using an optional firewall and you want to allow a
blocked application to connect:
■ Temporarily solve the problem by disabling the firewall,
performing the task, and then reenabling the firewall.
■ Permanently resolve the problem by reconfiguring the
firewall. Refer to the firewall documentation or contact
the firewall manufacturer.

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