Converting 12 volt DC power to 120 volt AC power is generally a two-step process. You have to first convert the 12 volt DC power to 12 volt AC power, and then run the 12 volt AC through a step up transformer. Commercial power inverters and converters supply 120 volt AC power from a 12 volt DC source such as a car battery or solar panel. Warnings Writer Bio

If you want to put a photo inside some text, or make your artwork take on the form of any shape, Photoshop clipping masks are the way to go. Clipping masks are composed of two layers. A photo or artwork layer is placed above a mask layer. When you join the two layers in a clipping mask, only the parts of your photo that have corresponding pixels in the mask below it are visible....

An Optus myZOO email account allows you to access your email using many popular email client programs, such as Microsoft Outlook or Mozilla Thunderbird. In order to set up your Optus email accounts, you will need some information from Optus, such as the addresses of the incoming and outgoing mail servers and your Optus log in name. Once you have this information, you can set up your email client to retrieve your Optus email....

Updated August 23, 2017 Preparing Your Printer Open the lid on your printer, while it is still plugged in, and pull out any remaining ink cartridges. Printer ink is considered an environmental hazard and should not be thrown into the garbage. Most printers will only allow you to access the ink bay when the printer is still plugged in. Unplug the printer. Remove all detachable cables, such as the printer-to-PC data cable, and set them aside....

As the popularity of websites like YouTube and Netflix rises, more and more Internet users choose to view videos online. Because the types of Internet connections and servers vary, so does the quality and speed of live-streaming videos. Often, users encounter issues when online videos suddenly stop or pause so that the data buffer can refill its cache. You can improve the smoothness of your video streaming in several ways....

By default, a QuickBooks invoice template omits the total balance information – which includes past-due amounts – for a customer or job. To add a customer’s total current balance or the total balance due on a job to an invoice, you have to edit the invoice template’s options through the Additional Customization window. Although sending a statement will inform a customer of the current status of his account, adding the total balance amount to his current invoice will serve as an additional reminder to get his account up to date....

Firewalls filter Internet traffic to and from your computer to protect against malicious content, like malware or spyware. Placing firewalls at most or all Internet ports and connections can help safeguard sensitive information. You can configure firewalls in Norton Internet Security to block or allow traffic to and from various programs, based on specific criteria. Although you may have global rules set that restrict programs from accessing the Internet, you can create rules and exceptions for specific ports, programs and protocols....

If you own a projection television set, you may notice from time to time that your picture starts looks a bit dull or that the picture gets a little fuzzy. This is no cause for immediate alarm and does not necessarily mean that your TV is going out and you will have to purchase a replacement. In most cases like this, you can fix the problem yourself simply by adjusting a few settings on your television set....

Sometimes while surfing the Internet you want to browse pages anonymously. This hides your IP address so the website you are visiting is not able to track your movements, see what region of the world you are from or what operating system is installed on your computer. To do so, you need to use a proxy, which is a website that blocks out all this information. However, some Web pages do not load unless cookies are enabled....

Many schools enable web proxy blockers to protect their servers. Web proxy blockers are beneficial for large organizations to ensure improper websites are not viewed and viruses are not downloaded onto the server. Proxies are also beneficial in limiting web browsing and increasing productivity. Proxies can be anonymously unblocked using an unblocking proxy website. Writer Bio

When you allow others to access your Outlook calendar, they may be able to add appointments or view the times that you are available for meetings. To prevent people from scheduling you for work or inviting you to meetings during times that you are not working, you have two options: change your work hours, which allows other to see when you are free or busy, or add a recurring appointment to your calendar, blocking others from scheduling you during those periods....

Facebook’s tagging feature certainly adds an extra social aspect to photos, but you may not want all your friends to be able to view photos that you haven’t uploaded yourself. Unfortunately, you cannot block people entirely from tagging you on Facebook. However, you can change your privacy settings so that only you can view tagged photos of yourself. You can also untag yourself in photos, in which case the person cannot tag you again in the same photo....

Coax cable is used to connect many electronics devices, including televisions, DVD players, cable television boxes, radio antennas and computers. The standard coax cable consists of an inner conductor, outer conductor and an outer layer of insulation material. Although, both the inner and outer conductors are made of metal, they both have some resistivity that causes power loss as the signal travels down the conductors. This loss is referred to as signal attenuation....

JavaScript is a scripting language used to add dynamic functionality to web pages. JavaScript is placed directly into a web page’s HTML and is used to add interactivity, such as user feedback and input validation, to otherwise static pages. JavaScript also interacts directly with items on a web page, such as input fields and buttons, so it can be used to update their attributes. JavaScript can be used, for example, to keep track of values entered by a user, add them and provide the total....

Many of Panasonic’s Viera plasma TVs offer dozens of useful features, including a 1080p high-definition picture, 3D capability and an app that lets you use your smartphone as a remote control. When you turn on your TV for the first time, you may notice that the picture quality isn’t the same as it was in the store. Your Viera’s display settings were set to their default levels at the factory, and therefore may not be ideal for home use....

Samsung’s DLP rear-projection televisions come in several models, some larger than 60 inches wide. They include a bevy of calibration options for tweaking the display image and sound settings for an optimal viewing experience. Use these settings to change the television’s luminance, color temperature, display area, noise reduction and sound balance. Access all the calibration options using the television’s included remote control. Writer Bio

Linux support for universal serial bus (USB) video and Web cameras is enabled through the open source USB video device class (UVC) drivers that are included with Linux distributions by default. To capture video from a USB or Web camera, it is necessary to install software that can record and save video files to your computer. The free video-capture program, Cheese, is designed to provide a user interface for recording video and taking pictures from a camera that can be stored on your computer and is available for installation on all Linux distributions....

Any time you want to change your phone number on your Verizon Wireless cellphone you can do it online or in person at any Verizon Wireless retail location, no application required. You don’t have to have a reason for changing your number; you can change it to avoid unwanted calls by someone you no longer want in your life or just because you want to change it. Your new number is active immediately after confirming your change....

Apple TV’s Settings menu enables you to choose the best screen resolution and refresh rate for your television, although this method requires some trial and error. Because network speed can affect picture quality, your Apple TV includes an Auto setting that dynamically adjusts resolution as you stream content. If this setting doesn’t work well enough, you can cycle through the available resolution settings using the Apple Remote during playback. Tips Warnings Writer Bio

A word processing application similar to Microsoft Word, WordPerfect lets you create, edit and print documents as well as share documents with others via email using the program’s exporting tool. WordPerfect’s workspace, the area where you compose your document, contains a white background, but you can change the background to a color of your liking. The background setting is stored within the program’s configuration, but the color you want to use must be selected from the list of colors available within the Windows operating system....