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In computer networking, tunneling is a strategy of sending data across a network by piggybacking off of another network’s connections. Tunneling makes it possible for someone to send secure or private data across an open network such as the Internet. Windows operating system uses tunnel adapters as part of the networking interface, which allows the computer to communicate with IPv4 and IPv6 networks. To understand how tunnel adapters work and why they are needed, it’s important to understand the structure of networks and the Internet....

Cell phone addiction is a fast growing addiction in the U.S. According to Drugrehabtreatments.com, there are over 225 million cell phone users in the U.S. and 63 percent of these are teenagers. In addition, a recent survey conducted by Pew Internet and American Life project showed that 51 percent of cell phone users felt it would be very hard to give up their cell phones, according to the Forbes Magazine website....

Smartphones run on various types of operating systems. Many versions have Windows Mobile installed on them, while Apple’s iPhone runs on the iOS. BlackBerry phones are a kind of smartphone designed by Research In Motion (RIM) and running the BlackBerry OS. Smartphones share many features; you can access multiple email accounts, text messages, run applications and browse the Internet in addition to regular phone functions. When choosing a mobile phone, you’ll have to decide which type meets your needs and budget....

People connect wirelessly to networks in multiple ways. Some surf the Internet using laptops at public Wi-Fi locations. Others use routers that they purchase or rent from their Internet service providers. Routers are devices that enable you to connect to a cable or DSL modem. Regardless of where you are accessing a network wirelessly, it is important to use an encryption method, such as WPA2, to ensure that other people do not intercept your private information as you communicate over the network....

The Panasonic WV-BL204 is a CCTV camera used for surveillance in businesses or homes. This camera is not longer manufactured. It can be purchased used, but often it comes with no cables, manual or power attachments. Without the proper cables, the camera will not operate properly. Understanding what cables are needed will help you set up the best possible surveillance for the system that you need.

When you reply to an email message or forward it for comment, what you see in your outgoing message depends on whether or not you prefer to quote the original content back to the recipient of your response. If you expect to see the original message but your response doesn’t include it, check the way you’ve set up your email software or webmail interface. Writer Bio

In printing and publishing, the word “font” refers to the typeface used to create printed characters. A font is selected to provide readability and to relay information through the text. There are two types of fonts: serif and sans serif. Sans serif fonts do not include any type of ornamentation on the characters. They appear as straight lines without any flourishes. Some have curved tops to appear softer and friendlier when reading....

PNG History PNGs are ideal for displaying line art, logos and other images that have large contiguous blocks of color. In the early days of computing, people used GIFs when they needed to put those kinds of images on the Web. When the company that owned the rights to GIF algorithm began asking software developers to pay to use GIFs, people started using JPEGs instead of GIFs. Because JPEGs aren’t suitable for all types of images, developers created the PNG format to replace the GIF....

When sitting at your computer working or playing it can get annoying if the screen on your monitor begins to flicker. It can even cause your eyes to become prematurely tired, cause headaches or simply delay your work. Getting to the bottom of this problem is probably a high priority if you use your computer regularly. There are a few common problems that cause screen flicker that can be fixed or at least diagnosed easily....

When you purchase a game using Valve’s Steam distribution service, your client downloads the data files from Steam’s servers, unpacks them and installs the game. While this process is going on, however, you may notice your download rate fluctuating significantly, and even dropping to zero at times. There are a number of reasons why your Steam download rate may fluctuate, and in many cases, a quick fix can restore your file transfer speed....

Digital Subscriber Line (DSL) is a type of Internet access that normally offers high connection speeds. However, various problems can cause DSL to slow down, especially when you make changes to your computer or telephone equipment. After determining why your DSL has slowed down, you may be able to correct the problem. Ask your Internet Service Provider (ISP) for help, or at least understand why you will have to accept a lower speed....

Belkin and Netgear are two of the top companies when it comes to home wireless routers, from standard models through those that support the draft version of the 802.11ac wireless standard, slated to be finalized in 2014. The race between the two heated up in early 2013 as Belkin purchased Linksys and Netgear acquired Aircard, shrinking the number of players vying for the top router spot. Writer Bio

Determining whether to amplify your cable TV can depend on a lot of changing factors. The way in which your cable is delivered – digital or analog – the level of service you’re receiving and the quality of the amplifier are all important considerations that affect how an amplifier helps your signal. A boost in quality is possible with an amplifier. Writer Bio

Unless you specifically opt not to save your chat history, Skype keeps these messages indefinitely. With around 23 million users online during peak times as of March 2010, regrettable chat exchanges probably happen regularly. You can get rid of the offending chat on your side, and even choose not to keep a record of future Skype conversations, but to delete both sides of the chat, you must convince your chatting partner that the record should no longer exist....

Several telecommunications and security companies install home security systems featuring camera monitoring that you can control from your smartphone, but you can configure the same setup using your PC’s webcam and your Android phone. A remote desktop app like Splashtop Remote Desktop or PhoneMyPC presents you with a scaled-down version of the computer’s desktop display. Though it can be a challenge to navigate on a small mobile device screen, one of these remote solutions can be your ticket to spying on whatever is within view of your PC webcam....

Since Google’s acquisition of YouTube, creating a YouTube account forces potential viewers to also register a Gmail account. You are not, however, required to have a Gmail account to begin the registration process. You can sign up as a new member to YouTube with just your Yahoo ID, then change your YouTube username to something like your usual online moniker. You will need your new Gmail account to log in as a YouTube member, but as soon as you have created an account, you are logged into the service....

Gmail is not set up to allow a single user to have multiple email addresses, but there are workarounds that will allow you to simulate having multiple usernames. Instead of setting up more than one username, Gmail will allow you to redirect multiple accounts into a single inbox. The process for doing this is simple and can be performed from your Gmail account the next time you sign in. Writer Bio

If you’ve grown tired of the tri-tone audio clip that plays when you receive a text message on your iPhone, you can personalize your device by assigning a song as a ringtone for your message alerts. As long as the clip is saved as a tone in your Ringtones folder, you can assign a song clip as your text message alert. Assign a text tone to play for all SMS and MMS messages, or assign specific tones to friends and family members in your Contacts list....

It happens to almost everyone who regularly uses email; you are preparing a long message when suddenly the program crashes or you accidentally exit or delete your draft. Whether or not you can recover your work depends on the program you use. Writer Bio

A serial number identifies a specific device such as an iPhone. Knowing your serial number does not in itself allow you to track your device if it is lost or stolen. However, your local law enforcement agencies may be able to use the serial number to confirm that a device has been stolen and then return it to you. Apple does offer tracking, but the service doesn’t rely on a device’s serial number....