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Basics of the Internet

Basics of the Internet

By Pocholo Peralta

The Internet in its earlier decades was simple and easy to use. But as years go by, it becomes more complex and very fast. After using the Net for more than four years, I got inspired to review its basics because I seem to have forgotten it! Let’s get back to Internet basics and basic components.

The most prominent component of the Internet model is the Internet Protocol (IP) which provides addressing systems (IP addresses) for computers on the Internet. It enables internetworking and essentially establishes the Internet itself. But one of the cause of Internet connection problems is the exhaustion of IPv4 (IP version 4) because of the explosive growth of the Internet. Now we wouldn’t be in the basics anymore if we continue so…

Connecting to the Internet

Broadband – Most users prefer this connection because it’s the fastest and most stable. But you can only use this on a fixed location.

WiFi or Wireless – As opposed to broadband, you can use this connection where ever you are, ergo wireless.

Programs and Applications

Before you can do something with your computer, you must have programs and applications. When you buy a new computer, there are already installed programs that would let you add more.

Browsers

Browsers are the doors to the Net. Our connection to the Internet is useless without them. In order for us to browse or ’surf’ the Internet and connect to other websites, we need to use browsers. Examples of Browsers:

Google Chrome

Ubuntu

Firefox

Opera

Safari

Explorer

Networking

The main reason for connecting to the Net is networking which is sharing of resources and information among computers and devices connected to the network. By networking, users can communicate efficiently and easily via e-mail, instant messaging, chat rooms, telephony, video telephone calls, and videoconferencing.

Social Networking is mainly done for leisure. By using programs and applications, people can join a social network and exchange messages and pictures. The most popular social network sites are Facebook and Twitter. Serious working people see social networks as time wasters.

Internet Safety and Security

Many new computer users don’t realize that maintaining their gadgets isn’t a simple task and fail to maintain the safety and security of their computers, either unintentionally or by recklessness, until one day, their computer ‘crashes’ and find out that their gadget wouldn’t work anymore.

Tasks for maintenance and safety:

Updating Operating System

Updating Browsers

Updating Antivirus, Antimalware, Antispyware

Using link scanners that check if the site we plan to visit is safe

Deleting suspicious ‘flash cookies’

Doing all these tasks regularly

(And I’m not sure yet if these tasks are complete!)

We can update any of these automatically but sometimes for some reason, it stops working. So another task is checking for updates.

Things that could happen if we ignore safety:

Malfunction of your computer

Malware, spyware, or virus infection which could stop or ruin our computers

Identity theft which could lead to stolen bank accounts -This is the most dangerous and most popular among computer criminals

Hijacking of your personal weblogs, email account, or sites

I hope I have convinced us all that Internet security is a must. Some techies believe that we have to be paranoid about our internet safety to be really safe.

See more of Poch Peralta’s posts and pages on Plato on-line at www.pochp.wordpress.com

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Top 10 Tips to Using Public Wi-Fi Hotspots Safely
By Bethany Payne

Ahh, the joy of portable computers. Being able to grab a coffee, fancy pastry and sit down in a comfortable environment, and take in the energy of the others around you while getting some work done. Or getting some tasks completing while you are waiting at the airport. Great scenario, but most work these days involves connecting to the internet, and how can you do that safely using public wi-fi? With a bit of preparation and wireless security smarts, you can get quite a bit of work done at that coffee-shop or airport.

  1. Be Smart

    Do not access sites that concern your online banking, investments, or private activities that you might not want others knowing about when you are using Wi-Fi in a public location. Thieves can easily sniff and see all data sent back and forth from your computer through the internet.

  2. Be Aware of Low-Tech Thievery

    Be conscious of your surroundings. Shoulder-snoopers can see the sites you are accessing and maybe copy down your password. They may later contact you with enough information to bait you into giving them more.

  3. Use a Firewall

    Make sure you have your Windows firewall active or that of another company installed and active, such as Norton or Panda, especially when you have wifi security concerns.

  4. Watch for an Evil Twin Attack

    Be certain that the wi-fi you are connecting to is the legitimate one for that spot. An internet criminal may set up one that has a name very similar to the hotspot, and you may connect to theirs by mistake. Get the correct name for the true connection at that location as an initial step to protect your wireless internet security.

  5. Use Secure Email

    When accessing your email, contact your ISP for their secure address. It should begin with “https:”, not just “http:”. This means that the site is using an SSL certificate so that the connection is more secure, and the information is also encrypted so sniffers cannot see the real data being transmitted. Be careful that the “https:” stays in the browser address bar throughout your whole email session. Some revert back to “http:” after you log in.

  6. Delete Your Cookies

    Cookies make it easier to log in to your frequently visited sites by remembering your username and password for you, however, if you connect to these sites when using public wi-fi, sniffers can get your cookie info. Delete your cookies before you connect to the internet at a hotspot.

  7. Turn off the Ad-Hoc Networking

    This should already be disabled with most default Windows XP and Vista installations, but you should check anyway. Ad-hoc networking allows two computers to communicate directly with one another, without an access point between. Obviously not a good idea to allow in public. Be certain you are using infrastructure mode, which requires an access point.

  8. Do Not Allow Your Computer to Connect Automatically

    After you have connected to a wireless connection once, your laptop probably sets your network setup to automatically connect when you are in range again. Check on the properties of each connection when managing wireless connections, and do not allow your computer to automatically connect to networks. Although it may take you more time to get a connection, it gives you more control and awareness over your internet connections.

  9. Disable Printer and File Sharing

    If you are used to sharing printing and files at home or work, be sure to disable this feature before connecting at a public wi-fi spot. Certainly don’t want to share with others there.

  10. Connect More Securely

    There are a couple of options here. One is to get a wireless access card, so you don’t need to use public wi-fi. This is an expensive option, but if you travel a lot and need internet access out of the office, it might be the way to go. It’s a card you buy from a cell phone provider, insert into your laptop, and connect through that cell phone company’s data connection. A large part of the cost is the monthly fee.
    Amother solution is to use a VPN Tunnel. If you are working for a large company, you probably connect through their Virtual Private Network (VPN). This is a secure, encrypted connection and is a good way to go when connecting to the internet through a public access point. You can also set up your own VPN, between your home desktop and your laptop. Your desktop would have to be connected to the internet through a cable and be on and connected when you want to get online with your laptop. If you’re interested, do an internet search for how to set up a XP VPN.

In conclusion, public wi-fi connections are convenient, but be smart before you connect. Be aware of your surroundings and what data you are sending and receiving. Save the transactions that you wouldn’t want to be viewed by strangers for when you have a more secure connection.

For more great tips on using the internet and computers, including how to speed up your computer, come visit me, Bethany, at http://askgeekgirl.com/

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Is Microwave the Future of WiFi?

Is Microwave the Future of WiFi?
By Sandy Cosser

WiMax (Worldwide Interoperability for Microwave Access) isn’t new technology (the WiMax forum was created in 2001 to promote the standard), but it’s only recently that it has made people sit up and pay greater attention. 180px-WiMAX_equipmentAccording to Robert Morrow, a retired Air Force Academy electrical engineering professor, WiFi and cellular data are on the way out because the future belongs to WiMax. There are others, however, who are not quite as glowing in their praise of the emerging WiMax technology, and who believe that it will prove too expensive to have any real practical value.

In an article for LiveScience, Morrow explains why he believes WiMax is the way of the future. Even though WiMax will not be free, as WiFi is, it offers uninterrupted service. Its reach is longer than WiFi’s (several kilometres as opposed to several metres) and its signal is stronger, although this is dependent on the distance from base station antennaes. In theory, users should be able to stay connected online all the way across the United States without losing signal once, a feat which is currently impossible even with mobile phone technology. This is because WiMax is compatible with a range of digital cellular service providers, and not just with one or two.

While WiMax doesn’t currently enjoy wide spread use, Morrow believes that within the next 2-5 years it will be commonplace in all major US cities, and that in 5 years time, it will be sold with all laptops, or none of them. Which seems rather contradictory, but he says that WiMax’s ultimate success will depend on how quickly laptop vendors will add WiMax modems to their products.

David Jarvis, a South African telecoms entrepreneur, is one those people who still believes in the power of WiFi. At the 2007 WiWorld Conference, Jarvis said that WiFi is still a more affordable alternative to WiMax. According to Jarvis, a WiMax base stations costs around $35,000 (£17,703) to build, while a WiFi station costs a mere $2,500 (£1,264). The CPE price of WiFi is also lower, $250 (£126) vs. $350 (£177) for WiMax. Other factors favouring WiFi include its already widespread adoption and the fact that it’s available in commonly used wireless devices.

The Wireless Access Providers’ Association of South Africa (WAPA) has compiled a list of reasons why Wireless Internet Service Providers (WISPs) prefer WiFi, such as the tried and tested capability of WiFi. WiMax has yet to prove itself capable of living up to expectations and to justify the price increase from WiFi. In addition, the use of both technologies in the Far East has shown that WiFi is superior to WiMax as a business model.

Pakistan, however, is throwing its weight behind WiMax, as it has constructed the largest WiMax network in the world. Wateen Telecom, in conjunction with Motorola Hardware, has installed the network across 17 cities in Pakistan.

While the debate between WiMax and WiFi rages on, some experts in the telecoms industry believe that both technologies can exist alongside each other, with each sharing an equal piece of the telecoms pie. They predict that those who are expecting a major battle between the two will be sorely disappointed, as the future is rosy for both of them.

Recommended sites:

http://www.livescience.com/technology/080603-wireless-future.html

http://en.wikipedia.org/wiki/WiMAX

Sandra wrote this article for the online marketers Star Business Internet internet service provider and website hosting one of the leading Internet service companies specialising in business website hosting in the UK

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