Photonic crystals are those that manipulate how photons are absorbed or reflected off of them. They occur in nature and are made of dielectric nanostructures that allow certain wavelengths to pass through them while blocking other wavelengths. The visible light portion of the electromagnetic spectrum’s wavelengths is responsible for colors, therefore photonic crystals can spontaneously emit exotic colors. How Photonic Crystals Work Photonic crystals are made of nanoscale structures that either allow or block individual wavelengths of light, depending on the frequency of their dielectric constants. Each wavelength of light Read More

A test credit card number is the card number of a fake live credit account provided by a credit card company in order for retailers to verify that their card readers are working properly and that they are compatible with a specific credit card brand. Test credit card numbers are read like real credit card numbers, but no money is actually moved. How Test Credit Card Numbers Work A retailer can enter a test credit card number into his/her credit card reader or cash register in order to verify that Read More

A content management system–otherwise known as a CMS–is a piece of software that runs on a server. As the name suggests, the software is intended to manage content. The overall goal of a CMS it to make it easier for the average Internet user to publish content on the web. Without having to go in and code new pages using HTML, a user could update a website with just a few clicks. A CMS took the focus away from the coding and the design and instead focused it on the Read More

Mobile software refers to software that can be stored and executed on a mobile device such as a cell phone, PDA, smart phone, or similar device. Mobile software can range in its capabilities as some simply change the virtual appearance of the device while others provide important features such as menu layouts and password protection. ScreenLocker, for instance, can lock unauthorized users out of a mobile device while Opera Mini is a mobile browser. This article will go over a number of mobile programs that can greatly enhance the user’s Read More

Most satellite television is encrypted using conditional access systems such as: DigiCipher II VideoCipher II RS Nagravision VideoGuard Irdeto Mediaguard Viaccess Conex To watch these encrypted television channels, you need a box which can decrypt them. This box is sometimes referred to as a satellite television descrambler. Satellite Television Descramblers Most satellite television descamblers are legal boxes which are provided by legitimate resellers. These descramblers require valid subscriptions from the satellite television broadcasters. A few people sell “hacked” satellite television descramblers which are designed to provide satellite television service without Read More

Troubleshooting SMS Site Server Installation Issues When SMS Setup fails to install the SMS site server, you can use the information in the Smssetup.log file to determine where the SMS Setup failed. A SMS installation failure usually fails in one of these categories: Disk issue Security issue SQL Server issue A few common SMS site server installation issues are listed here, together with the recommended strategy for solving the issue: When SMS Setup fails because of a disk space issue; ensure that the NTFS partition you are using has sufficient Read More

Video RAM (VRAM) is a type of RAM used to store data related to images and videos that a computer’s monitor displays. Generally, Video RAM is stored on the computer’s DRAM (Dynamic Random Access Memory) and reads like any other data before it is translated into display content. Video RAM is used as a buffer between the computer’s processor and monitor, allowing it to process data faster and display content without delay.   How Video RAM Works Video RAM stores images and video frames that the computer’s processor has identified Read More

It is a well-known fact that most computers are susceptible to hard drive crashes or virus attacks. Backing up information is a practical and necessary precaution to protect one's data from being lost forever. There are several realistic methods for backing up data. The best backup method for your data depends opon many factors, including: the importance of the data, the amount of data to be backed up, and the funds available for backup. Here are some of the most commonly used data backup solutions. Flash Memory Flash memory, also Read More

UCleaner is a program that should be kept off of the PC for security reasons. This program advertises as a privacy protector and anti-spyware program, but this is false. The program also goes by the name Ultimate Cleaner, and it is a scam program. The program advertises a free scan of the PC for security risks, and then the security alerts start popping up and there are numerous privacy threats listed in the scan results that do not exist. This is a scare tactic to get consumers to buy the Read More

With the expanded use of 3G and 4G wireless technologies over the past several years, the popularity of Internet radio has continued to increase. Not only can one listen to their favorite radio station(s) at home or work on the computer, but now they can also be accessed through Internet-enabled smart phones. Internet radio differs from on-demand video or music casts in that the programming is streamed live but does not have the ability to be paused like on-demand services. Internet radio also differs from podcasts in that it does Read More