Channel: itfreetraining

Category: Education

Tags: display devicesvideo settingsa+itfreetrainingdisplay settings

Description: In this video, from ITFreeTraining I will look at some of the display settings and features that you may come across when purchasing or using a display device. Understanding how these settings work will help you get the most out of your display devices. Download the PDF handout: itfreetraining.com/handouts/ap/2a40.pdf Topics Covered in this Video 0:13 In this video, I will look at a number of topics, but regardless of what sort of display device you are using, whether it be a monitor, projector or mobile device, it will have these characteristics. It is important to understand each topic to assist you configuring your display device or if you are considering purchasing a display device. Resolution 0:33 The resolution of the monitor is essentially the number of pixels on the screen, but generally we measure it using width and height. The width will come first followed by the height. These numbers are difficult to remember so common resolutions will often be called something else. For example, 2560x1440 will often be called 2K. The resolution also includes the color depth, which is the number of colors the screen can show for each pixel. The first screens had a limited number of colors, and in fact some could only support two colors. As time went on, the number of colors increased. Modern screens will support 18-bit color or 24-bit color; however, some monitors can support even more than this. When purchasing a screen, the things to consider are different screen sizes will have different resolutions. This will affect the image quality and the sharpness of the image. For example, in a large screen, the image will generally appear less sharp as it has been spread out over a larger area. Sometimes it is better to get a smaller screen with a higher resolution than a larger screen with a lower resolution. The choice, however, comes down to what you think is more important. The video card or device that is supplying the video will be able to output a maximum resolution. If your screen does not support that resolution, the resolution will need to be reduced. Also, another consideration is the amount of bandwidth a resolution requires. For example, a resolution that support more colors will need more bandwidth. In some cases, the cables used to connect a device will have a rating of how much bandwidth they will support. In order to support a higher resolution or more colors you, may need to upgrade the cable. In the old days of Cathode Ray Tubes or CRTs, these monitors would be able to display lower resolutions than the maximum resolution. Newer monitors like LCD screens have a native resolution that they are designed to display at. They will support a lower resolution, however in order to do this they will scale the image. This will cause the image to look fuzzy. Aspect Ratio 2:51 The next specification I will look at is aspect ratio. An aspect ratio is a measure or ratio between the width and height. There have been many different aspect ratios over the years, but I will look at the three most common ones. The first one, 4:3, was commonly used in the old days of computers and in old video cameras. It has a pretty square look. You don’t see it used that much nowadays. If you want to shoot a video and make it look like it was shot 20 years ago, you would use this format. An aspect ratio can also be written as a ratio to one. For example, in the case of 4:3 it can be written as 1.33:1. They are both the same thing, however you don’t see it written this way very much. I can only assume that it is not written this way because it is harder to say. Description to long for youtube. Please see the following link for the rest of the description itfreetraining.com/ap/2a40 References “The Official CompTIA A+ Core Study Guide (Exam 220-1001)” Chapter 5 Paragraph 43 – 46 “CompTIA A+ Certification exam guide. Tenth edition” Pages 75 6– 789 “Picture: Cyber network” pixabay.com/illustrations/cyber-network-technology-futuristic-3400789 “Display resolution” en.wikipedia.org/wiki/Display_resolution “Palm tree” unsplash.com/photos/1VYdx37vOGQ “Display aspect ratio” en.wikipedia.org/wiki/Display_aspect_ratio “Skier” pixabay.com/photos/freerider-skiing-ski-sports-alpine-498473 “Running Dinosaur” pixabay.com/videos/dinosaur-running-animated-cartoon-1438 “Candle burning” pixabay.com/videos/candle-fire-flicker-darkness-light-4101 “Kitten” pixabay.com/photos/kitty-cat-kitten-pet-animal-cute-551554 Credits Trainer: Austin Mason ITFreeTraining.com Voice Talent: HP Lewis hplewis.com Quality Assurance: Brett Batson pbb-proofreading.uk