There are times when someone on Facebook can become a little too annoying and deleting them is the only thing left to do to ensure that they leave you alone. Deleting a friend is not difficult, but it is permanent. Once you delete them, you’ll have to add them all over again, so make sure you want them gone. You will no longer have access to view their wall and their pictures. Before making any attempt at deleting anyone, you need to be logged in. Therefore, log into your Facebook Read More

An Introduction to Fault Tolerance The following issues initiate downtime: Hardware Failures: Hardware failures can be described as failures that occur in mechanisms like disks or storage media. Hardware failures tend to offset other failures. It is recommended to utilize platforms that can monitor internal temperatures, as well as trigger alarms accordingly. With random access memories, error correcting codes (ECCs) can be utilized to identify and correct single errors and to identify two-bit errors. Software Failures: Determining the reason of a system outage can be quite intricate. Virus protection defects Read More

You must have heard about Yahoo Widgets? The most recent Windows Vista operating system even has Yahoo Widgets which can be seen on the desktop, but they are also common on computers with the Mac OS X system. Yahoo Widgets were known as Konfabulator in the past; they came to be known as Yahoo Widgets after the original company was taken over by Yahoo. JavaScript Yahoo Widgets run on the JavaScript runtime environment, so your computer must have the JRE engine running. Yahoo Widgets are really just small applications that Read More

Luminol is a substance that has a blue or green glow when it comes in contact with blood, certain metals, or other oxidizing agents. It is made from hydrazine and hydrogen peroxide and exhibits chemiluminescence, the process by which light is emitted from a chemical reaction. Luminol has many uses, but is most widely used for crime scene investigation and forensic science. This is because trace amounts of iron found in hemoglobin, a substance found in blood that is responsible for carrying oxygen throughout the body, activates luminol. How Luminol Read More

Cloud computing refers to the delivery of one or many services powered by computer hardware and software over the Internet or local computer network. For most major service providers, there are a large number of computers configured in a grid to provide the service architecture located in the “cloud.” The origin of the name cloud comes from the original representation of the Internet with the cloud symbol and in systems diagrams that use a cloud symbol to represent the complex underlying infrastructure. As services in this domain become more prevalent, Read More

Cybersquatting refers to using, trafficking in or registering a domain name with the intention of taking advantage of the popularity of another company’s trademark. These cybersquatters generally register these domains before the target company, thus forcing the latter to buy the domain from them at a higher price. Cybersquatting comes from the term squatting, which describes the act of occupying a land, building or any other property without the knowledge or permission of the owner. In a sense, cybersquatting entails cybersquatters registering a company or a trademark for his domain Read More

An iPad is a tablet PC that Apple produced, which combines the functionality of a Macbook, iPhone, iPod Touch, and e-reader into one portable device. An iPad is much larger than an iPhone, but is smaller than a Macbook, allowing users to perform a wide variety of tasks from virtually anywhere. iPads have touch screen capabilities and are able to connect to the Internet in several different ways, including via an Ethernet connection, Wi-Fi, Bluetooth, and/or 3G.   Ethernet Like all other types of computers, iPads are able to connect Read More

C++ supports pointers; Java does not (Java does have object references) C++ supports mutiple inheritance directly; Java supports multiple inheritance only through interfaces C++ supports operator overloading; Java does not C++ supports global variables; Java does not (sort of) C++ supports #define; Java does not C++ supports typedef; Java does not C++ supports enum; Java does not C++ supports unions; Java does not C++ supports structs; Java does not C++ supports constants; Java supports final variables

DirectX, formerly known as the Game SDK, is a term given for a collection of Windows APIs (Application Protocol Interface) for easily handling tasks related to game programming on the Microsoft Windows Operating System. This set of development libraries for high performance games allows software developers "direct access" to the low-level functions of PC peripherals. DirectX access is the hardware abstraction layer in Windows. DirectX APIs The various components of DirectX are DirectX Graphics, DirectInput, DirectPlay, DirectSound, DirectMusic, DirectSetup, and DirectX Media Objects. The various components comprising DirectX are in Read More

With each day that passes, we rely more and more on computers for all facets of our lives in the information age. Every aspect of daily life from financial matters, health issues, and leisure time all have ties to the World Wide Web and, ultimately, computers now. For some, their computer is their livelihood. For even more, their computer provides them a crucial resource for information, communication, and organization. One reason that computers are able to accomplish all of these remarkable feats that shape our lives is their ability to Read More