QVGA (Quarter Video Graphics Array or Quarter VGA) is a type of resolution whose dimensions are 320×240 pixels. The QVGA display is normally found in devices such as mobile phones and PDAs. The display is also common on other hand-held devices such as game consoles. Resolution Most of the time, the display is in the portrait layout as opposed to the landscape layout. They are also known as 240×320 displays because they are taller than they are wide. So why is it known as Quarter Video Graphics Array? It has Read More

A TFT monitor is a LCD display that uses thin-film transistor technology. Flat panel displays are quickly becoming the dominant display of choice and are replacing cathode ray tubes. These days, nearly all of the LCD monitors that are designed and developed use TFT technology to provide the picture. They were developed because, in the past, there was a reliance on the passive matrix LCD display. These were unable to keep up with images that moved quickly. For example, moving the mouse on a computer from two points would disappear Read More

One of the most common hardware problems that people who own a laptop experience is a broken or malfunctioning laptop screen. Laptop screens are essential to laptop use. Laptop screens can be incredibly delicate. However, they are surprisingly very easy to fix  even if the fixer is not a technical person. Troubleshoot the Laptop Screen Problem Before replacing a laptop screen, it is wise to troubleshoot the problem. While obvious damage to a screen usually requires full replacement, other types of damage that are visible on the laptop screen may Read More

A computer monitor, technically termed as a visual display unit, can be plainly described as an electronic device that transmits information from the computer onto a screen, thereby acting as an interface and connecting the viewer with the computer. At present, computer monitors are available in a variety of shapes, designs, and colors. However, based on the technology used to make computer monitors, they can be broadly categorized into two types. These include CRT (cathode ray tube) and LCD (Liquid Crystal Technology). CRT (Cathode Ray Tube) Monitors These monitors employ Read More

No matter where LCD screens are kept, they will always need cleaning from time to time. Cleaning an LCD may seem like a daunting task, but there are a few simple ways to clean it without damaging to scratching to surface. Retail There are many cleaning solutions available in shops. However these may seem a bit expensive and are sometimes quite unnecessary. PixelClean is one of the better and less expensive brands. It is highly recommended. Most products will come with instructions on how to use them. Alcohol Solution It Read More

Video applications often require you to manage several different signal sources. A video multiplexer is a device that helps you put recordings of signals from multiple security cameras on one cassette. It handles several video signals simultaneously. Video multiplexers can split a monitor into various display areas and vice versa, i.e., combine output signals from several cameras to a single monitor. You can then record your combined signal on your VCR or wherever else you want to record. They can also provide simultaneous display and playback features. Some video multiplexers Read More

DVD players, while extremely affordable and for the most part reliable, do become dirty. In almost any environment, dust, pollen, hair and other contaminants can penetrate the DVD machine which can impact the playing of digital media. The good news is that with just a few household tools and occasional maintenance, you can keep your DVD clean and running smoothly. Tools Needed to Clean the Exterior of your DVD Player Most parts of the exterior of the player can be cleaned with simple household products such as: Rubbing alcohol or Read More

The Peripheral Component Interconnect (PCI) Express card slots for the x1 devices are small and compact enough to allow an additional peripheral that can be used for low power, low bandwidth, and general additions to the computer system. A PCI express x1 video card provides access to additional graphical power to add one or more monitors to the system. Generally, a video card of this type will provide access to VGA, DVI, S-Video, VHDI, or other possible connectors for additional monitor connections.         Specialized cards that offer Read More

A touch screen is basically a display screen which can identify the occurrence and position of a touch within its own area. This usually refers to a touch or tap to the display of the gadget by a finger or hand. Touch screens can also identify added inactive objects, such as a stylus. Touch screens work by recognizing the pressure of a finger or stylus and then responding accordingly. For a touch screen to work, it needs a few basic parts. These parts, when combined together, allow the touch screen to Read More

Upgrading a video card is not difficult. The most difficult part about upgrading your video card is figuring out which one to get and, more importantly, which one will work on your computer. The video card needs to be able to connect to the motherboard. If it can’t, the video card won’t work and you run the risk of having hardware damage. Therefore, determine what kind of motherboard you have and then research which types of video cards you can get. The video card sockets are PCI, AGP, PCI-E and Read More