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Week 7: Image Optimization and Section 508
What connection does the company Compuserve have with gif's?
CompuServe introduced the Graphics Interchange Format (GIF) in 1987. This bitmap image format has since come into widespread usage on the World Wide Web because of its wide support and portability.
Please explain image optimization for the Web?
Image optimization for the web is not about the highest quality images with the highest quality output. Rather, file size is a very important concern for images for the web, because when a user first visits your page, their browser has to download and cache all of the page’s elements in order to view them. Because larger files take longer to download, the result is a slower-loading web page and compromised user experience.
There is no universal file size or quality setting, since every image is different, but optimizing images for the web actually is about balancing picture quality and file size.
How does screen resolution affect a website?
Screen resolution is defined as the number of dots (pixels) drawn horizontally, then vertically, across the screen. For example, a screen resolution of 640 x 480 would indicate that the computer has been set to draw a maximum of 640 pixels horizontally and 480 pixels vertically on the screen. It's important to think about the screen resolution of your user when you are designing a website, because the resolution actually affects how your image will appear on the monitor. If your screen resolution is 640x480, the same picture will take up a larger percentage of the screen than if your screen resolution is 1280 x 960.
What does it mean to be Section 508 compliant?
ection 508 requires that Federal agencies’ electronic and information technology is accessible to people with disabilities. To be Section 508 compliant, webmasters must meet proposed standards to make their sites accessible for users with disabilites. For more information, visit the Section 508 website.