Tag Archives: video
Detail Information about Video Cards
Ever wondered about the source of the image we enjoy on the computer monitor or LCD. Well the answer to this is the video card, which processes the image on the monitor, and today we discuss everything about video cards.
Quick Facts about Video Card
Alternative Names – video adapter, graphic card, graphic accelerator, display adapter
Video Card Classification integrated video card, dedicated video card and hybrid video card
Video Cards Commonly Used ATI video cards and Nvidia video cards
Understanding Video Card
The monitor is composed of numerous tiny points, better known as the pixels. All these pixels are instrumental in forming an image when commanded by the computer. Now in order to form an image, the computer requires a translator which would take binary input from the CPU and then convert it into image. It is then when a video card comes into action.
It is the video card which decides how many pixels it will be using to form an image. The process of converting binary information into image is a complex thing. The 3-D image formation involves the video card to first form a wire frame of straight lines which then fills the remaining pixels by the process of rasterization. The filling of the color, lighting and texture is also done by the video card. When you are enjoying a fast paced game, this process is repeated approximately 60 times in a second. With so many processes to handle by the video card it would be difficult if this component is ignored in the system.
Video card and components involved in image formation
1. Motherboard – to retrieve data and source of power 2. Processor – the deciding factor for pixel usage 3. Memory – stores pixel information and is buffer for temporary image 4. Monitor – the final place where the result or the image is seen.
Now you have a comprehensive idea as to how important a video card is in the overall performance of the system. Ignoring even slightest problem in this component could mar the performance of your system. Here are some common video card problems.
a. One of the most frequent problems faced is that the drivers need to be updated b. The image on the monitor is not formed properly c. Temperature variations can also cause error in the performance of video card
If the problem becomes more complex you would require video card repair. In this connection one name which should be remembered for video card repair and laptop video card repair is Video Card Repairs by Ztronics.
Uses and Benefits of Video Test Pattern Generators
Video test pattern generators provide a convenient and effective way to calibrate, test and troubleshoot video display devices such as HDTVs, projectors, LCD (liquid crystal display) screens and CRT (cathode ray tube) monitors for the ideal viewing experience.
Specific patterns are produced by the video test pattern generators to determine a variety of performance criteria, including: video resolutions, brightness and uniformity, purity and color saturation, linearity, edge geometry, sharpness, stability, etc. By comparing the video input pattern to the video output on a display unit, it is possible to determine how accurately a monitor displays the video it receives and if any defects can be rectified. Some video test pattern generators also allow a user to test digital and/or analog audio signals through generated frequency waves. Using the corresponding video cable needed, simply connect the video test pattern generator to the supported display unit to run the test patterns on the screen. No other video source, such as a computer, DVD player or set-top box is needed for the testing process. If multiple display units are to be compared, the use of a video splitter can ensure that the same pattern is displayed on all desired monitors and subsequently calibrated so that the video output is identical on all screens.
Three of the most common video test patterns are: color bars, grayscale charts and crosshatch, with each serving a distinct function. Several variations of the color bar test pattern exist, with the most well-known being the SMPTE color bar, which are used to test analog NTSC video. All color bar test patterns serve the same purpose of testing and calibrating color saturation, balance and brightness. Most grayscale charts consist of a gradient of monotone bars with the goal being to obtain a smooth range of neutral grays from pure black to white. Adjustments can be made to brightness and contrast to achieve the optimal display. Crosshatch patterns are used to check and calibrate centering, aspect ratio, convergence, and both vertical and horizontal linearity. Other test patterns can range from focusing on one or two specific issues to universal patterns that cover most key aspects.
Most video test pattern generators are compact, portable devices that allow easy field calibration, testing and maintenance of many applications such as: production line quality assessment; studio equipment for both installers and users; television sets by TV engineers or technicians; digital signage configurations with extenders, switches, splitters or video wall processors; and discerning home theater users. High-end models tend to support multiple video signal types while lower-end models offer a more limited and specific selection. Video Products Inc (VPI) offers a wide selection of video test pattern generators that can fulfill the needs of varying applications.
VPI’s MONTEST-HDMI and MONTEST-HDMI-LC respectively provide a high-quality and low-cost option for testing HDMI or DVI display units. The low-cost unit can generate 34 video test patterns, 48 timings and a single audio tone. In comparison, the MONTEST-HDMI provides 39 distinct test patterns, 35 resolution and timing settings, and a range of analog and digital audio signals via a built-in sine wave tone generator. It can also be controlled via the IR remote control or RS232 in addition to its front panel buttons. Both units can test for HDCP compliance and support HDTV resolutions up to 1080p.
The MONTEST-LCD signal generator supports analog computer monitors, LCD displays and video projection systems with the following four connectors: VGA, MAC II, SUN and RGHHV for BNC. It can generate four video patterns with 16 colors and intensity control, and over 100 frequencies that cover a wide range of monitor types.
The MONTEST-HDSDI can generate eight video test patterns and seven timings up to 1080p resolution at full broadcast quality, making it ideal for testing and maintaining studio equipment such as monitors, cabling and recording equipment. It also supports single-tone audio testing and dual SDI output for side-by-side comparison of displays.
All encompassing, the MONTEST-DA supports both analog and digital video signals, including: HDMI, DVI, NTSC, PAL, component Y/Pb/Pr, S-video, VESA, and more. It not only provides a variety of video test patterns, but also allows a user to play stored video and audio files from an embedded 80G hard drive. Remotely control the unit via its RS232-port. Supporting stereo audio test signals, DDC2B, and HDCP, the unit can scale a source to fit a display based on its EDID data. The MONTEST-DA is an ideal, comprehensive solution for applications that need to test, calibrate and maintain various display types.
Video test pattern generators are necessary for achieving optimal displays in many different settings and VPI’s range of MONTEST video test pattern generators can help both consumers and businesses achieve the highest quality their display units can deliver.
Easy Back Link Strategies
If you’re just launching your career in affiliate marketing, or blogging,, here are some ways to get yourself some back links without spending a lot of money:
1) OnlyWire: OnlyWire includes a free WordPress plugin that enables you to submit your posts to numerous social bookmarking sites just by clicking a button. It submits your site and/or articles to many high PR sites, but does have the irritating element that you must log into your e-mail and confirm submissions to certain sites. You may also pay a low fee while not having to cope with this irritation.
2) Article submission: Article marketing to directories is a tried-and-true approach to drive traffic to your site. Even though some recommend article marketing to any and every directory you can find, it’s not a good overall strategy. It is far more beneficial to focus on directories which have real page rank and authority, for example EzineArticles.com, ArticlesBase.com, and GoArticles.com. EzineArticles.com has arbitrary rules and regulations that may change almost psychotically,, but when you build up a nice bank of articles with them, you’ll have clicks through to your money site for months, if not years, to come.
3) Web 2.: Blogging sites like Squidoo.com, Blogger.com, HubPages.com are all valuable places to create back links for your money site. A very nice way to produce links on Web 2. sites is by using Posterous.com. You merely sign up for Posterous by sending an e-mail to post@posterous.com and an account will then be created for you. You can then choose “Autopost” and get Posterous to post to a variety of Web 2.0 sites for instance Facebook, Twitter, FriendFeed, Blogger, Xanga and WordPress.com.
4) Commenting on blogs: Leaving comments on other’s blogs is yet another good strategy. But don’t be lazy and leave dull comments like “Great site! I’ll be back soon!” If I see a comment similar to this on my own sites, I instantly trash it, and you probably do as well. So why waste your time leaving a worthless comment which has no hope of being approved? Try to look for blogs that are in your niche and then leave a link back to your website in anchor text if possible.
5) Forum Profiles: Another great method for back links. These can be tough to locate, though. Perform a Google search for “Powered by phpBB” and your keyword. Build a profile, then leave your keyword in anchor text inside your signature. Be cautious with this tactic; many forums will can you in a heartbeat if you include a signature the moment you sign up for a free account. If your forum has enough page rank, it’s worth creating a comment or two within the forum, then adding a signature in a week or two.
6) Video creation: If you didn’t know it by now, YouTube.com has become the second largest search engine after Google, so getting your videos out there is definitely worth your time and effort. Videos submitted to large directories get indexed almost immediately, and are a great way to build back links to your site. You can simply re-purpose one of your articles for video content. There are several options to make free videos,for example Windows Movie Maker and Cam Studios. You don’t need to make an Oscar-worthy video; simply put your main points in PowerPoint and narrate the rest. It’s said when you show your face, you have more credibility with your audience, which makes sense. You definitely don’t have to be Hollywood-star attractive; you need to be well-groomed and talk with sincerity sincerity. Although you may just show your mug for a few seconds at the start of the video, or upload a still picture of yourself, it’ll aid your credibility.
But real power in back linking comes when you start to link many of these strategies together in a calculated method in which looks natural to Google. There are far more sophisticated linking strategies than the these ones that will propel your site to the front page of Google quicker than you ever thought possible.