Category: Reviews

Java variables store different types of data. Java programs store data values in variables. When a programmer creates a variable in a Java application, he declares the type and name of the variable, then assigns a value to it. The value of a variable can be altered at subsequent points in execution using further assignment […]

If you discover IRIS OCR software on your computer, don’t panic. It’s not a virus, and if you don’t need it, you can remove it without crashing your system. Optical character recognition software works with a scanner to generate digital files that can be searched for words or phrases. I.R.I.S. is a software company that […]

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 […]