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Details

WD Chapter 5
All about
8
Computer Science
10th Grade
10/07/2008

Additional Computer Science Flashcards

 


 

Cards

Term
JPEG
Definition
works best for continuous tone images, like photographs. Can represent up to 16 million different colors and has to reduce the file size, which throws away some information about the image. And does not support transparecy.
Term
GIF
Definition
Works bets for images with a few soild colors, and images with lines, like logos, clip art, and small text in images. Represent up to 256 different colors, compresses the file size so it doesnt lose some information and allows one background color to be transparent.
Term
What does IMG element do for a web page?
Definition
The img element is to place an image in your webpages
Term
How do the browsers treat an img element differently?
Definition
after reading the HTML page, the browser retrieves each image from the Web server and displays it.
Term
Is the img elemtn an inline element?
Definition
Yes because it means that the browser doesnt put a linebreak before or after an image.
Term
Why is an alt attribute a meaningful description of an image?
Definition
Because it is displayed in some browsers if the image cant be located and is used by screen readers to describe the image for the visually impaired.
Term
Why is a width of 800 pixels a good rule of thumb for the size of photo imagies in a web page?
Definition
Because most photo images that are created by digital cameras are too large for web pages, so you'll need to resize them.
Term
What happens if images on a web page are too large?
Definition
it makes it difficult for the browser to use and slow for download and display the web page/images
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