Tampilkan postingan dengan label wifi. Tampilkan semua postingan
Tampilkan postingan dengan label wifi. Tampilkan semua postingan

Sabtu, 01 Oktober 2011

Wireless - The Future Of Connecting To The Internet

What is WiFi? Wifi or Wireless Fidelity, allows you to connect to the internet from virtually anywhere at speeds of up to 54Mbps. WiFi enabled computers and handsets use radio technologies based on the IEEE 802.11 standard to send and receive data anywhere within the range of a base station. Wireless is a technology that's inexpensive, easy to use, and practical and yet... it's a technology that's still very young. Here's a quick look at what the future could hold for wireless. The Radio and the Phone Wireless networks will always win over wired ones, if for no other reason, simply because it is much cheaper for signals to travel through the air than it is to install and maintain wires. For example... consider that telephones were originally used for sending and receiving news reports. When radio was invented, this stopped almost overnight - why bother going to all that expense when it's free 'over the air'? The same principle applies to computer networking. Imagine having a choice between a wired Internet connection and a wireless one. The only reason to choose a wired connection would be cost because currently it's cheaper? However, that will change soon. Wireless is also easier. Once the cost gap closes, if given the opportunity, there's no logical reason why anyone wouldn't switch to a wireless connection. WiMAX WiMAX is the next generation of wireless. It will use a standard called 802.16. The current standard is 802.11. It's still a work in progress, but the possibilities are exciting. WiMAX stands for Worldwide Interoperability for Microwave Access and is designed to complement existing wireless equipment... rather than replace it. The big advantage of WiMAX is that it greatly increases range. Rather than being measured in square meters, which is how the current standard is measured in, WiMAX ranges will be measured in square kilometers. Some estimates say the best WiMAX stations will be able to transmit up to 50 kilometers or about 30 miles! Clearly, this opens an incredibly wide range of possibilities. Wireless access would move from LANs (Local Area Networks) to MANs: (Metropolitan Area Networks) covering a whole town or city with wireless access. The question would no longer be if you could connect via wireless, but what WiMAX network you wanted to connect too. Other benefits of WiMAX include speed of up to 70Mbps (almost 10 MB per second) and better security. Imagine a future where ordering Internet access is as simple as connecting your existing wireless equipment to the network, opening your web browser and buying a low cost subscription. That's it - done. No more access points, no more routers, no more configuration... just wireless Internet, anywhere and everywhere at broadband speeds. WiMAX is in the process of taking the world by storm. For the latest news on WiMAX visit the WiMAX Forum (a non-profit industry group set up to promote WiMAX) at http://www.wimaxforum.org. WiMAX has been in development since 2001 and the first WiMAX equipment is expected to hit the market in late 2005 or early 2006. What is Bluetooth? Bluetooth is a new standard for short range radio connectivity. It is the new and promising field in the wireless communications standardization activities, which will profoundly affect the operation and applications of electronic gadgets of the future. The most obvious purpose of Bluetooth technology is to replace USB and it's designed to eventually replace almost every wire there is… except power cables. What does that mean? It means that someday your TV could be connecting to your DVD player via Bluetooth or your speakers could connect to your radio with it, and so on and so on. As you get older, expect to see fewer and fewer wires. I know… people said the same thing about paper but it turns out that people like paper and don't want a 'paperless society'. On the other hand, how many people do you know who have cable or wire fetish? The biggest remaining article is reliable wireless power. When they figure out how to provide reliable wireless power (i.e. better batteries)… look out because the flood gates will really open up. A Simpler Life Convenience... the first benefit of wireless technology that comes to my mind. Wires have so many flaws, especially when they go long distances and the overall wireless project is to remove the vast majority of them from our lives. Of course, another nice benefit will be cost because once wireless if up and going full-bore it will cost less than wire based transmission. My prediction... within 10 years, wireless access will be making everyone's life much easier and it will be the norm. The future is wireless!

Selasa, 23 Agustus 2011

Is Your Laptop Or Home Computer Wireless Enabled?

Built in wireless capabilities are becoming almost standard equipment on most laptop and home computers these days for a couple of reasons. One of the primary reasons is cost. Adding wireless capacity is so inexpensive that it would be silly for the manufacturers not to add it. The perceived value of any machine with wireless capacity far exceeds the cost to add it. Wireless is the wave of the future, so if the manufacturers want to stay ahead of the technology curve they need to add it to all but there most basic models. However, if you're like most people you probably can't even check how much memory your computer has, let-alone if your computer is wireless enabled. Throw in the fact that you may not even know what wireless networking is and it's easy to ignore even trying to determine if your computer has that capacity. As a result, having ever taken the time to set it up is clearly out of the question. However, since you bought your computer you've probably heard more and more about "going wireless" because it's becoming the hip thing to do. If that's the case with you or I've simply peaked your imagination then read a bit more because I've outlined a few things you can to do to check if your computer has wireless capabilities. Laptops - Intel Centrino Mobile Technology Computer manufacturers do less than a perfect job at explaining what this means but if you if your laptop came with this built in then that's good news for you! In a nutshell, it means that your laptop has wireless networking built right in and you don't have to do a thing. Intel Centrino Mobile Technology is a marketing name for a combination of the Intel Pentium M processor and Intel's' Pro Wireless card. If you have Intel Centrino Mobile Technology then your computer should have a "Centrino" sticker on it somewhere. If you can't find a sticker but you suspect you had one at one time then simply do the following. Right click on your "My Computer" icon. It's probably on your desktop but if not then go to your Start Menu, find My Computer, right-click and select Properties. When the menu opens look at what it says after or under the word Computer. On a side note, Intel Centrino Mobile Technology also increases battery life and allows manufacturers to build computers smaller. If you can't find anything referring to Intel Centrino Mobile Technology under the word Computer -- don't worry because as long as your laptop has a free card slot, installing wireless is a piece of cake. Desktop Computers If you're not sure whether or not your desktop computer has a wireless connection, the easiest thing to do is to simply turn it around and look for a small aerial sticking out of the back towards the bottom. If it's there then you are wireless enabled. On the other hand, if there's nothing then it's still possible that you have a wireless device in the computer, especially if you purchased anytime in 2005 or beyond. However, because it's not the best idea (unless you've done it before) to try and open up your computer to check something I'll show you a way to check, if your wireless enabled, using Windows. Using Windows to Check Wireless Capacity Rather than messing with your computers hardware to verify what you've got installed, you can just as easily check using your Windows' Device Manager. To use it, right click My Computer / Choose Manage / and then click Device Manager. After you click Device Manager a list of everything you can install will appear on the right half of the screen. Take a look under Network adapters and ignore anything that says 10/100 or Ethernet because they are simply normal network connections -- not wireless ones. If there's anything else there, it could be a wireless device. If you think you have a wireless device, but it has a yellow warning sign alongside its name in the Device Manager, you should take a look at it to see what's wrong by double clicking on it. Windows should then tell you why the device is not working at the moment and may even suggest that you go through its troubleshooter program. Do that before you do anything else. If it turns out to be a driver problem, you should insert the driver CD that came with your computer. If you can't find the driver CD that came with your computer - don't worry because you should be able to find and then download the appropriate driver online. The first step would be to go to website of your computers manufacturer and do a search for the name of the wireless device that showed up in your Device Manager. Once you find the correct driver simply download it and follow the instructions. After all this (actually about 5 minutes) you may discover that you don't have a wireless enabled computer -- oh well, those are the breaks. However, it's clearly better to find out your computers wireless capacity now -- before you go out and buy some wireless equipment and then realize that you didn't even need it. This article may be reproduced only in its entirety.

Rabu, 16 Juni 2010

Get The Facts About Wireless Laptops

Laptops give you unbelievable portability for all of your computing needs, but as the need for communication grows more each day you need a computer that will keep you in touch. There are many options for portable computing. Laptops now come in many different sizes to match your specific needs. Large or small screens are the biggest factor affecting the size of a laptop. Extra options like media drives and larger batteries will add overall weight to laptops. The current trend for any traveler is to get the smallest computer that will get the job done. Airports have wireless internet access available, so a wireless network or wi-fi card is a good option. Large screens used to be popular but strict travel regulations have caused many people to get smaller screens. This will make the computer easier to deal with at security check points. Major reasons for the trend in “less is more” with laptop computers, is that they have become simply more of a tool and less of a novelty. Most basic computers are very capable in running any business application and have the necessary options for general use. Basic laptops have also dropped in price dramatically. The options have become the expensive part as competition grows fierce to have the lowest priced computer available. People are now buying computers more frequently with less options because it is more cost effective that buying the newest technology. Fast processors and large hard drives start out very expensive and quickly become standard features on basic laptops. You can keep more up to date by getting a new laptop every two years instead of getting the newest technology and trying to make it last for 4 years. Anyways, most laptops show a performance loss after about two years if the hard drive is not defragmented and formatted. It may not sound cheaper to buy a computer more often, but it also what you buy. Doing a little shopping around and assessing what you really need in a computer can save you the money that you need to buy one more often.