qVGA, also known as Quarter VGA is a screen size and resolution measurement. This measurement and resolution is most commonly used for PDAs, cell phones, and hand held games. These screens tend to be portrait in orientation rather than the landscape orientation that people are used to on televisions or computer screens. The term VGA is related to the standard size and resolution of a screen as set by IBM in the 1980s. This standard screen size is 640 X 480. This standard has been used ever since as a standard method of measuring resolution and screen size. This became the standard and the base measurement of what all computer and televisions screens would use after that. All increases or decreases in side would be done in relation to those specifications as set down. An example of this is the Quarter VGA.The term quarter refers to one fourth of something. A quarter dollar mean one fourth of a dollar. A quarter of a year is one fourth of a year. This applies to the Quarter VGA, meaning that the standard screen is then one quarter of the size of the standard screen. The orientation is not mentioned in this though and is simply a space saving connivance for the manufactures of the phones or PDAs. It should be mentioned that qVGA technology is not necessarily compatible with full VGA technology. This is to mean that one cannot take a qVGA screen shot and make it fit the VGA screen without causing stretching and distortion. The reverse is also true; one cannot take a VGA screen shot and turn it into a qVGA without causing distortion, no matter what the software is.One other thing that should be mentioned about the qVGA is the Quad VGA which means that the measurements would be four times greater than that of the original VGA. For this reason, much of the software and hardware that is related to quarter VGA is noted as being qVGA and the software that is four times larger than the standard VGA is noted as QVGA.
Proxy sites enable the individual to access websites and servers through another server to keep the location and identity of the individual unknown. This helps to limit the amount of spam, cookies, and other information from being gleaned or placed on the computer. This in turn helps to keep the computer running fast and efficiently. Cookies and other computer identification software that is placed on the computer by websites can drastically slow down the computer. These cookies and other identification softwares help to identify a computer upon reentry into the website so that items that the website thinks you want will be available. The computer can also catch a virus from such softwares because of the softwares ability to be corrupted or otherwise altered. This is one of the major reasons that people use proxy sites. In addition to the protection from cookies, proxy sites stop the gleaning of information from the computer through the website. This gleaning is often just information regarding what other websites that one is viewing, but can be much more invasive. The possibility of hackers and other individuals who might be using the gleaned information to steal ones identity or bank accounts is greatly reduced by using a proxy site.These proxy sites can either be true internet sites that assist one in viewing additional websites while keeping the computer safe, or they can be servers that protect the computer. Proxy sites that are true websites tend to provide secured lines of communication between the website and the computer. This helps to defray any lost or gleaned information from the computer and limits the cookies that may be placed on the computer.Servers that are used as proxy sites are often in addition to the server that allows for the computer to access a website. This server acts a surrogate computer and takes all of the cookies, spy ware, and other computer harming components for it to be trashed and destroyed before damage can be done. This server could be part of the computer itself, or it could be part of the ISP server units. Either way, proxy sites can be extremely useful and helpful for all those who use them.
From blogging to podcasting to creating online videos, 4-H youth are leading the way, using new media and communication tools to share breaking news, event coverage and educational information with their community.For example, the 4-H News technology club in Jefferson County, Wash., provides on-the-spot reports through video clips and podcasts posted to their 4-H Network News Web site. Club members have covered a fire in an historic hotel and a Red Cross disaster training exercise and conducted interviews with local business leaders. The youth are hands-on in every step of putting together the one-to-two-minute news segments. "We get ideas about what we'll do and who we'll interview, then we take the camera, tape footage, put it on the computers and edit it," 15-year-old Sophie Gilbert said.Gilbert first created a video about a school reunion but quickly saw the educational value for her community. She has produced segments about avoiding drugs and alcohol and a beach restoration project. "There is a need for us to talk about some of the important things going on in our county and in the world," she said. The club came together as a collaboration among the local 4-H club, the Washington State University Extension office and the local newspaper. Jack Olmsted, 4-H leader for the club, Pamela Roberts, 4-H coordinator for the Jefferson County 4-H office, and the newspaper's publisher work closely with the youth. "Online media can be a priceless resource to capture not only the value of the 4-H experience, but also for our community, country and the world," said Olmsted. "The youth are getting the process down and planning segments while making them enjoyable but also informative." The 4-H reporters publish their stories to an international audience using tools that are readily available in homes and offices-a video camera, computer linked to the Internet and telephone. "It is important to show the world that this can be done and it's easy for anyone to do," said 13-year-old Daniel Bryant. Club members see themselves as a resource to others who want to start using online media. They also improve their public speaking skills and build self-esteem as they teach adults how to create and post news segments.4-H is a community of young people across America who are learning leadership, citizenship and life skills.
Mitsubishi Electric Corporation is well known for their HDTV rear projection sets. Chances are that you have seen those models that utterly dominate large living rooms, and look similar to big square-like boxes that, if hollowed out, could accommodate a family of rottweilers. Those large monsters, in which the picture quality never looked very good from an angle, will soon be relegated to museums, because rear projectors are getting thinner at a fast clip. Now, Mitsubishi is pioneering a new way to approach the rear projection HDTVthey are using Lasers! With this new idea from Mitsubishi, a RPTV (Rear Projection Television) is transformed because a Laser replaces the usual mercury lamp in the rear of the set. The model is still considered a DLP (Digital Light Projection) but the light comes from red, green and blue Lasers! LASER, which stands for light amplification by stimulated emission of radiation is a technology discovered in the late fifties and is already used in CD players and printers. Albert Einstein knew about the amazing things that photons could do when stimulated in the right ways. The pure, coherent light provided by the Laser is expected to nearly double the colors available with todays best LCD (Liquid Crystal Display) High Definition television sets! The picture quality will be enhanced over any existing rear projector. In addition, this new idea will not a require a color wheel because the Laser can be turned off and on quickly enough to provide for changes in color for the display. Mitsubishi expects these new Laser sets to be just over 25 centimeters deep (around 10 inches). Therefore, they will be able to compete in slimness of design with some plasma and LCD models. It may be around two years before this technology is available to the consumer, but it will make quite a splash when it hits the market. The President of Mitsubishi said recently, We want to release the product on the market in two years by creating a mass-production line capable of being run on a commercial basis. The staggering fact is that Laser technology is fully capable of producing a better picture than either Plasma or LCD. Of course, improvements in those technologies should not be underestimated, but the race is on. Just like during the Internet bubble, there are a number of competing technologies, and it is too early to discern whether DLP will beat LCD, or Laser will reign over Plasma. Stay tuned to see the outcomes, for there is no known oracle that will spoil the ending for us and it is getting more interesting all the time. While some consumer goods such as CD players and laser printers have made use of the laser, this would be the first commercial production of Laser light powering a HDTV display.
Electronic test equipment, commonly called testgear, is equipment that is used to create stimulating signals and capture the responses from electronic devices under test. These devices are knowns as DUTS, Devices Under Test. Given this controls it is possible to prove the proper operation of a device through these tests, and deem them as being needed of repair or not.Electronic test equipment is an essential element to any major electronics system. Ranging from a simple light bulb to expense and even automated tasks,electronic test equipment covers a very large range. In general it can be said that when developing electronic systems that more advanced equipment is needed opposed to when doing routine production testing on existing systems in the field. This rule is not always however true, because every system is different.Some examples of test equipment are: Ammeter, Voltmeter (Measures voltage), Multimeter (Measures all of the above), Oscilloscope (Measures all of the above as they change over time), Frequency counter (Measures frequency).In the past, it used to be that tests would have to be initiated by some type of man given command, through a controller or other. With the level of technology present today, the majority of testing is done automatically through the use of computers, either continuously or at given increments. This automation of testing greatly led to an increase in production and in reliability of electronic systems as they almost have the ability to monitor themselves and know when something is going wrong.