Category: Reviews

Central Processing Unit or CPU. This sounds like a trick question, but it has merit. The Central Processing Unit (CPU) is a microprocessor that controls the execution of program instructions. In a computer, it is considered to be the brains. However, other devices such as hard drives and tape drives, employ processors to execute read/write […]

Image Credit: iskrinka74/iStock/GettyImages Computers and other electronics don’t deal well with water and heavy dust, but those aren’t hazards in most homes and offices. One hazard that’s a much bigger concern is heat because powerful CPUs and video cards generate a lot of it in the course of their normal operation. A laptop can sit […]

Image Credit: Wavebreakmedia/iStock/Getty Images Wireless technology describes electronic devices that communicate without cords using radio frequency signals. Wireless technology is used in a variety of modern device to provide convenience and greater mobility, and wireless devices play an important role in voice and Internet communications. Wireless Router A wireless router is a device that accepts […]

A man is editing on his computer. Image Credit: vadimguzhva/iStock/Getty Images Video rendering is the process by which a computer processes information from a coded data source and uses that information to produce and display an image. The computer code may include instructions on creating images verbatim for playing back a movie or may provide […]

CD-R and DVD-R are both types of writable optical discs. Image Credit: y-studio/iStock/Getty Images CD-R and DVD-R are optical disc storage formats. Choosing the best one to use is a case-by-case decision. DVD-R discs have much more storage space, but CD-R discs work with more devices. CD-Rs are an older medium, but they still get […]

When a Web page is blank, there are a few likely reasons. The reasons fall into three categories: 1, a server-related problem; 2, a network problem; and 3, a client browser or computer problem. Once you figure out the reason for the blank page, you can take the appropriate action, which may involve fixing a […]

Most digital televisions use PCM audio. Image Credit: flashfilm/Lifesize/Getty Images Pulse Control Modulation in television audio uses a modulation method that changes an analog signal into a digital signal, originally developed by a telephone company employee for military and phone applications in the 1930s. You’ll find this as a standard option on your television or […]

Image Credit: itakdalee/iStock/GettyImages Computer hardware servicing refers to doing repairs and maintenance on the physical components of a computer and its peripherals, including fans, hard drives, keyboards and printers. It differs from software-related maintenance, which deals with the programs running on a computer, including eliminating malware, installing new software and updating programs for users, though […]

Encypt your Wi-Fi network to ensure secure communcations. Unsecured wireless Internet connections are vulnerable to eavesdropping. The Wi-Fi Protected Access protocol uses keys to ensure that communications over your home or office wireless network remain secure. WPA Keys WPA uses pre-shared keys that authenticate a device to a protected network. These keys can take the […]

Many mice have two buttons and a scroll wheel. Image Credit: Ingram Publishing/Ingram Publishing/Getty Images Mice are a basic peripheral component of all modern desktop computers. Mice send data to your computer that tells your computer where to display the cursor of your operating system’s graphical user interface. While mice come in a variety of […]