How does the wireless Internet work on laptops?

Answer 1

In simple terms, you have two hardware devices that make up wireless connections. First, you have a Wireless Access Point or AP or WAP. A wireless access point is simply a wireless hub. An AP has antennas for sending and receiving the wireless signal to other wireless devices and it also has a cat 5 connection for connecting to the network.

The other device is a Wireless NIC. Wireless NIC's are manufactured for both desktop and laptop applications, however, the laptop NIC's are more popular. The wireless NIC's have a built-in antenna and it is also sends and receives signals. 802.11b/g devices send and receive at 2.4GHz.

Absolutely fantastic! A friend of mine would bring over his laptop & while I sat with my desktops poorly performing internet connection, he'd be connected through a anonymous IP that was lucky to have been useful in getting his Apple Mac online & with great download speeds. Lucky, considering that they somehow had their radiation permeating into the inner spaces of my home.

In fact, I should investigate whether or not the dangerous, brain zapping, wireless radiation is still violating the spaces of my inner sanctum. Imagine that, it's their produced & marketed product, yet my private property is infiltrated by it without any benefit produced other than the billions they rake in while emanating their intrusively trespassing, dangerous radiation

Honestly, I am going to wrap some tin foil around my head and pray the aliens don't get me.

Answer 2

You'll need a wireless access point, either a wireless card for your desktop or a laptop with a built-in wireless or a wireless PCMCIA card. At that point, either follow the instructions provided by the manufacturer or contact the manufacturers help line. Each manufacturer has slightly different applications and different versions of available operating systems treat the procedure in slightly different ways.

Answer 3

You just need a wireless card that goes in your laptops pcmia slot. They cost maybe $50, get the 80211.g standard. This will get you on wirless net at wifi spots, like in coffee houses, and if you have a home wireless network hub, which you can buy at any electronics store. Here is more input from FAQ Farmers: * I have mobile broadband, it's a card, but I can get wireless 'net anywhere in US, but it's not free.

Answer 4

Radio technology is at the base of all wireless communication, be it in in wireless networks, cell phones, in radio broadcasting or in remote controls.

Sending an receiving radio wavesCommunication through radio waves is achieved by having a sender that generates the radio waves and a receiver that picks up the radio waves. In wireless networks, devices like laptops, pcs and smart phones can both send and receive radio signals in order to communicate with each other or with an access point.

In radio broadcasting, the radio station sends signals and radio devices only receive the radio signals and play the sounds that are modulated onto the radio wave.

How radio waves are generated and received A sender can generate radio waves with electricity. Electric current flowing through a wire creates a magnetic and an electric field. When alternating current (AC) is used, this creates an oscillating magnetic field. Such a field creates a wave that can be sensed by receivers up till great distances from the sender, because the wave causes electrical currents in metal objects such as the antenna's that are part of a radio set or the antenna's that are inside our laptops and cell phones. How radio waves carry informationIn wireless communication information is sent and received using radio waves. In order to do so, the information must be mixed into the radio wave. This mixing process is called modulation.

There are a number of ways of modulating a signal onto a carrier wave. The most common modulation types are Amplitude Modulation, which uses the varying of the amplitutude of the radio wave to encode information into the wave. Another well known modulation type is Frequency Modulation (FM) which varies the frequency of the radio wave to encode information into the wave. AM and FM are used in radio broadcasting, while more complex modulation types like Orthogonal Frequency-Devision Multiplexing (OFDM) are used in wireless networks.

DemodulationThe receiver of a radio wave, knowing what technique was used to modulate information onto the signal, can demodulate the radio signal to extract the information that was modulated onto the radio signal.

This is how wireless communication works in its most basic form. A sender modulates information onto a carrier wave and the receiver demodulates the received signal to obtain the information.