In computer communications, a Local Area Network (LAN) can have multiple connections to external Internet Service Providers. This is typically done for fault tolerance–if one link falls, the LAN is still connected to the outside world through the other link–and for increased bandwidth. You can connect a single switch on your network to two ISPs. Writer Bio

A demilitarized zone enables one or more computers to access the outside network unrestricted. You can set up DMZ on SonicWALL in network address translation mode or standard mode. NAT mode assigns private IP addresses to the computers on the network but configures these devices to communicate with the Internet using a single public address. Standard mode disables NAT, requiring all devices that connect to the WAN to use public addresses....

ASUS designed the EEE series of netbooks for users who don’t want a full-fledged laptop but need a little more computing power than a smartphone or tablet provides. Using Intel Atom ultra-low-voltage processors, ASUS EEE netbooks are highly portable, offer reasonably good battery life and include a full Windows installation. However, the same Intel Atom architecture that makes EEE netbooks so portable also lends to their sluggish performance for power users....

Asp.Net programmers use the term “postback” to refer to a page refresh that accesses the server. A page momentarily flickers during postback because the user’s browser momentarily wipes the page clean before rendering the newly received content. Microsoft, recognizing this problem, provides programmers with several methods of eliminating flickering during postback, including its Ajax framework. Ajax, or Asynchronous Javascript and Xml, eliminates flickering by limiting postbacks to only the portion of the page requesting data....

Pop-ups are annoyances that are meant to make you want to visit the websites they represent or to make you accidentally click on them so that you are taken to those websites. On a pop-up screen, there may be an advertisement or a game that offers a prize if you win. Often, a website will have pop-ups that show full nudity or partial nudity, and many times, you’ll find out that on the other end of the pop-up is a virus or some other form of malicious software that will infect your computer and cause more pop-ups to appear or destroy your system....

You can disable Active Shield pop-ups by turning off all alerts in the McAfee SecurityCenter. You can’t disable pop-ups related to your subscription through SecurityCenter. However, McAfee uses the Windows Notification service for all its pop-ups and you can hide all notifications from McAfee by changing a Windows notification setting. Tips Warnings Writer Bio

As more entertainment media becomes available online, the ability to stream content from a laptop computer to your television becomes increasingly valuable. If you’re looking to stream without any delay in audio or video, your best bet is to utilize a direct HDMI cable connection between your television and laptop. HDMI not only streams seamlessly, but also retains high-definition picture and sound quality, allowing you to stream HD content as it was meant to be seen and heard....

Ribbon cable is effectively a series of small cables, collectively shrouded in a plastic jacket. This resulting flat cable still has the individual conductors accessible, which is useful when terminating the wires. Ribbon cable usually supplies power and/or data to hard drives, DVD drives and other hardware (such as video cards). Understanding how to strip ribbon cable is useful if you’re repairing or replacing computer hardware. Writer Bio

Updated July 21, 2017 Download iTunes onto your computer. Connect the iPod to your computer. A warning comes up that says “This iPod is synced with another computer. Do you want to sync the iPod with this computer? All data will be lost.” You have the options of clicking “OK” or “Cancel.” Click Cancel. Select your iPod in the “Devices” section of the iTunes left navigation panel. In the main iTunes browser window, select the “Summary” tab....

A MagSafe power cord adheres to the electrical input magnetically, as opposed to being plugged into a socket. Perform a test to determine whether the MagSafe cord is supplying power properly to the DC-input board inside a MagSafe-equipped laptop using both the cord and the laptop. The procedure is straightforward and can not harm either the MagSafe cord or the laptop. Tips Writer Bio

If you receive unknown calls, you can trace the phone’s exact location. Many websites offer a reverse cell phone directory. By entering the number, you can find out for free the exact city and state that the number resides in. The reverse phone directory also gives you the telephone carrier that the person is using. To find out the person or company’s name and street address, you have to pay a one-time fee....

Satellite phones are essentially mobile phones that can directly connect with a communications satellite rather than bothering with the usual cell phone networks. This makes these phones invaluable in places where there isn’t regular cell phone coverage. However, these phones are still made with GPS chips so that they can be tracked by GPS satellite systems. If you find that you need to find a satellite phone, there are ways you can do it....

The Nikon D300 SLR is a small digital camera that as of August 2010 retails for about $1,800. The camera has many features, such as ISO, white balance, large LCD and view finder, to help you capture the best pictures possible. After capturing images with your D300, you don’t have to keep them on the camera. You can transfer them directly to your computer. This will allow you to save camera memory and share your pictures with friends and family....

Tumblr offers no functionality to transfer all blog posts from one Tumblr account to another, though you can share secondary blogs or move them between accounts. The name and URL of your blog can be changed, but the change doesn’t remove followers or comments you’ve made on other users’ content. Transfer your Tumblr posts manually or with a service designed to assist you if you want to move old Tumblr content to a new account....

Frequent disconnects of your Internet service can be a frustrating problem to deal with. Troubleshooting the issue can be a bit complex, as it can be caused by many different components of your home network. With some basic knowledge and a few simple troubleshooting steps, however, you can identify the source of the problem and restore your Internet connection’s consistency.

If you’ve created an Excel spreadsheet that performs calculations, you can create an executable program using the XCell Compiler utility. This will allow you to share the spreadsheet as a program file, obscuring the underlying formulas that make the calculations in binary format. You can also add your own splash screen, program icon and a license agreement that users must agree to in order to use the program. Writer Bio

Not all HP TouchSmart notebooks and desktop PCs offer the Bluetooth capability for communicating with other Bluetooth devices. Checking your TouchSmart’s manual or specification sheet details your device’s features and verifies if it offers Bluetooth connectivity. Even if your TouchSmart contains a Bluetooth adapter, it may be turned off by default; this is particularly true for notebook computers for which battery conservation is a concern. The HP Wireless Assistant controls the current state of the Bluetooth adapter, but notebooks may also use the Windows Mobility Center....

You snapped what you though was an ace photo with your iPhone or iPod – only to open your Camera Roll and find it’s a blurry mess. Before you press the trashcan icon and send the photo to a digital grave, experiment with any of a number of third-party iOS apps that might be able to bring your picture into sharper focus. Depending on the amount of blur, you might be able to use a free app to do the job....

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If your Dell laptop isn’t providing the same software installation and run speeds with newer programs, it may be time for a system upgrade. Rather than buying a newer laptop you can save money and learn about the inner workings of your laptop by upgrading the central processing unit. To upgrade the existing processor with a different model you must first disassemble several components that block access to the processor socket....