Using a WLAN

With a WLAN device, you can access a wireless local area network (WLAN), which is composed of other computers and accessories that are linked by a wireless router or a wireless access point.

NOTE: The terms wireless router and wireless access point are often used interchangeably.

A large-scale WLAN, such as a corporate or public WLAN, typically uses wireless access points that can accommodate a large number of computers and accessories and can separate critical network functions.

A home or small office WLAN typically uses a wireless router, which allows several wireless and wired computers to share an Internet connection, a printer, and files without requiring additional pieces of hardware or software.

To use the WLAN device in your computer, you must connect to a WLAN infrastructure (provided through a service provider or a public or corporate network).

Setting up a WLAN

To set up a WLAN and connect to the Internet, you need the following equipment:

A broadband modem (either DSL or cable) (1) and high-speed Internet service purchased from an Internet service provider (ISP)

A wireless router (purchased separately) (2)

The wireless computer (3)

The illustration below shows an example of a wireless network installation that is connected to the Internet.

As your network grows, additional wireless and wired computers can be connected to the network to access the Internet.

For help in setting up your WLAN, refer to the information provided by your router manufacturer or your ISP.

Protecting your WLAN

Because the WLAN standard was designed with only limited security capabilities—basically to foil casual eavesdropping rather than more powerful forms of attack—it is essential to understand that WLANs are vulnerable to well-known and well-documented security weaknesses.

WLANs in public areas, or “hotspots,” like coffee shops and airports, may not provide any security. New technologies are being developed by wireless manufacturers and hotspot service providers that make the public environment more secure and anonymous. If you are concerned about the security of your computer in a hotspot, limit your network activities to noncritical e-mail and basic Internet surfing.

24 Chapter 3 Networking

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HP 2740P manual Using a Wlan, Setting up a Wlan, Protecting your Wlan

2740P specifications

The HP 2740P is a versatile and robust convertible tablet PC that was designed for professionals seeking flexibility and high performance. Launched as part of HP's Elite series, this model is known for its business-oriented features and solid build quality.

One of the standout features of the HP 2740P is its 12.1-inch display, which boasts a resolution of 1280 x 800 pixels. This screen supports multi-touch functionality, allowing users to navigate and interact through gestures. The display is also built with an integrated capacitive digitizer, supporting the use of an optional stylus for more precise input, which is particularly useful for note-taking and graphic work.

Powered by Intel’s Core i5 and i7 processors from the first generation, the HP 2740P handles multitasking efficiently. It supports up to 8 GB of RAM, ensuring that demanding applications run smoothly. The device comes with various storage options, including solid state drives (SSD) or traditional hard drives (HDD), giving users flexibility and speed according to their needs.

Connectivity is one of the strong points of the HP 2740P. It includes multiple USB 2.0 ports, an ExpressCard slot, an SD card reader, and VGA and DisplayPort outputs, facilitating easy connection to various peripherals and external displays. Additionally, the device is equipped with Wi-Fi and optional mobile broadband capability, allowing users to stay connected on the go.

Security features are also robust, including a fingerprint reader and a Smart Card reader, which helps in safeguarding sensitive data. The device’s build quality is noteworthy, featuring a durable casing that meets military specifications for ruggedness, making it a reliable choice for professionals in challenging environments.

The HP 2740P operates with Windows 7 Professional but can also be upgraded to later versions, enhancing usability in today’s tech landscape. This tablet PC strikes an excellent balance between portability and capability, making it ideal for business users, educators, and creative professionals.

In summary, the HP 2740P is a well-equipped convertible tablet that encapsulates the blend of functionality and adaptability. Its combination of performance, security features, and connectivity options positions it as a formidable tool for those looking to enhance productivity in a compact form factor.