Although connecting a laptop to a projector is simple, without proper preparation, the projector connection can fail, resulting in a delayed or cancelled presentation. The most common way to connect a laptop to a projector is via VGA cable, with SVGA and S-Video cables providing alternative means of making the connection. A common task that arises for students and business personnel is connecting a computer to a display projector to show a presentation to a group of people. How to Connect a Laptop to Projector Step 1 – Identify Read More

A DiSEqC (Digital Satellite Equipment Control) switch is a device that connects coaxial cables from a satellite receiver to coaxial cables from a satellite antenna and is responsible for transferring data and power to and from each device. DiSEqC switches are used to control a satellite dish’s direction, send power from a satellite receiver to the oscillator in a satellite dish, and send data that a satellite dish collects to the satellite receiver. In the case of account related applications such as Pay-Per-View services, a DiSEqC switch can also be Read More

Anamorphic widescreen is a technique that can be applied to both film recording and DVD authoring to get the best picture resolution possible. In filming, this method captures the motion picture image in a format where the entire film area is used. The image is sent through a specialized anamorphic lens during recording. This stretches the image to completely fill the film while recording. This is done with film cameras, most notably on those designed to be used with the standard 35mm film. This places all of the information from Read More

Digital cameras are electrical energy consuming devices.  They will typically require the use of batteries to power them.  Digital camera batteries can come in many varieties which may be designed specifically for a manufacturer or brand. There are different kinds of digital camera batteries which are available for purchase.  Several are designed to be rechargeable and can last hundreds of charge cycles before they are not useable again.  Special charging docks for the camera may be available or a specialty charger which the battery is inserted into and plugged into Read More

The Refresh rate is the number of times a display's image is repainted or refreshed per second. As it denotes a frequency of a process, the refresh rate is expressed in hertz. That is, a refresh rate of 75 Hz means the image is refreshed 75 times in one second. For academic interest, it should be kept in mind that refresh rate is different from frame rate in that refresh rate means the repeated illumination of identical frames, while frame rate measures how often a display image can change into Read More

An IIR (Infinite Impulse Response) filter is a foundation element in Digital Signal Processing (DSP). It is one of two types of digital filters used in DSP applications and is an alternative to Finite Impulse Response (FIR) filters. The response in IIRs is considered infinite since there is feedback in the filter and they may be either analog or digital. IIRs are more efficient than FIRs for narrow transition bands, but it takes more time and money to develop a new IIR filter depending on the application. What are the Read More

Dish 1000 is a satellite dish provided by Dish Network that allows users to connect to high-definition broadcast satellites in the 110°W, 119°W, and 129°W orbital locations. Although the Dish 500 model was designed to connect to both the 110°W and 119°W locations simultaneously, Dish Network still needed to enhance the size and capabilities of their standard dishes in order to provide users with high-definition and more reliable service rather than requiring users to implement both a Dish 300 and Dish 500 model.   How Dish 1000 Works The original Read More

The AVI (Audio Video Interleave) file format was first created by Microsoft in late 1992 as part of the company’s video for Windows technology efforts. An AVI file can consist of both audio and video content that permits synchronous playback. The majority of AVI files use the format extension defined by the Matrox OpenDML group in February 1996. A common problem that arises for end-users is to convert AVI to MPEG format to support playback on a greater number of multimedia playback devices. Convert AVI to MPEG with HandBrake Step Read More

One of the most popular video formats used with computers and found on the web is WMV. Microsoft originally designed WMV (Windows Media Video) to stream video. WMV obviously plays with all current Windows Media Players and other media players such as VLC, Winamp, and DivX. Pre Requirement DVD/RW Optical Drive A DVD optical drive with write technology is an essential component for burning a WMV to DVD. There are several types of DVD media that are available and some optical drives only work with one type. For instance, the Read More

The best way to understand DVD recorders is to compare them with VCRs. They are similar both in shape, function and features. You can say about a DVD recorder that it’s an optical disk recorder that uses a laser beam to write media on a blank DVD. Usually the term of DVD recorder is applied to standalone units that are used in home theater systems, in studios, etc, but there are other types of DVD recorders and DVD recorder combos out there. For example DVD recorders mounted in a computer Read More