Wireless Local Area Network

A WLAN is a series of interconnected computers that communicate with each other over the air waves rather than through a network cable connected to each computer. In a WLAN, a radio communications device called an access point or wireless router connects network computers and provides Internet, or network, access. The access point or wireless router and the wireless network card in the computer communicate by broadcasting data from their antennas over the air waves.

What You Need to Establish a WLAN Connection

Before you can set up a WLAN, you need:

•High-speed (broadband) Internet access (such as cable or DSL)

•A broadband modem that is connected and working

•A wireless router or access point

•A wireless network card for each computer that you want to connect to your WLAN

•A network cable with a network (RJ-45) connector

Checking Your Wireless Network Card

Depending on what you selected when you purchased your computer, the computer has a variety of configurations. To confirm that your computer has a wireless network card and to determine the type of card, use one of the following:

•The Start button and the Connect To option

•The order confirmation for your computer

Start Button and Connect To Option

In Microsoft Windows XP, click Start→ Connect To→ Show all connections.

In Microsoft Windows Vista, click → Connect To→ View network computers and devices.

NOTE: If your computer is set to the Classic Start menu option, you can view network connections by clicking the Start→ Settings→ Network Connections. If Wireless Network Connection does not appear, you may not have a wireless network card. If Wireless Network Connection does not appear under LAN or High-Speed Internet, you may not have a wireless network card.

If Wireless Network Connection appears, you have a wireless network card. To view detailed information about the wireless network card:

1Right-clickWireless Network Connection.

2Click Properties.

The Wireless Network Connection Properties window appears. The wireless network card’s name and model number are listed on the General tab.

Setting Up and Using Networks

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Dell D430 Wireless Local Area Network, What You Need to Establish a Wlan Connection, Checking Your Wireless Network Card
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D430 specifications

The Dell D430, also known as the Dell Latitude D430, is a compact and portable laptop that was designed to cater to the needs of mobile professionals. Released as part of Dell's Latitude series, the D430 balances performance, durability, and lightweight construction, making it a reliable choice for professionals on the go.

One of the standout features of the Dell D430 is its size and weight. Weighing in at approximately 3.2 pounds and measuring just over one inch in thickness, the D430 is one of the more portable laptops of its time. This lightweight design allows users to easily slip the laptop into a backpack or briefcase without adding significant bulk, while still providing a sturdy build quality that is characteristic of Dell's Latitude line.

Performance-wise, the Dell D430 is equipped with Intel Core 2 Duo processors, which offer a good balance of power and energy efficiency for everyday tasks such as web browsing, document editing, and light multitasking. It typically comes with 2GB of RAM, which can be upgraded to 4GB for enhanced performance when running more demanding applications. The laptop features a 12.1-inch display, which, while smaller than typical laptop screens, maintains a resolution of 1280x800 pixels, providing clear visuals suitable for presentations and media consumption.

In terms of connectivity, the D430 offers a variety of ports and wireless options, making it versatile for different business needs. Equipped with USB 2.0 ports, a VGA output for connecting to external displays, and an RJ-45 Ethernet port, the D430 provides ample connectivity for peripherals and networking. Additionally, the built-in Wi-Fi capability ensures users can stay connected to the internet wherever they go.

Another notable aspect of the Dell D430 is its security features, which are crucial for business professionals. The laptop supports optional fingerprint readers and smart card readers, adding an extra layer of security for sensitive data. Moreover, features such as TPM (Trusted Platform Module) enhance the laptop's data protection and help safeguard users' information against unauthorized access.

Battery life is also a key characteristic of the D430, with options for extended batteries that allow for longer periods of use without needing to recharge. This makes it particularly appealing for professionals who may be out of the office for extended periods.

In conclusion, the Dell D430 combines portability, performance, and security, making it a suitable choice for mobile professionals seeking a reliable laptop for their everyday business needs. Its blend of compact design, solid performance specifications, and essential connectivity options showcase why it remains a respected member of Dell's Latitude series.
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