Images

Images come in a variety of formats including JPEG, GIF, BMP, PNG, ART, TIFF. These formats are the most commonly used by people. JPEG and GIF are commonly used for online publication such as pictures on websites and graphics. BMP is a standard windows image format that works well for pictures and graphics but takes up alot of of disk space. PNG (Portable Network Graphic) like GIF and BMP is a lossless format properly pronounced ping. It was created to replace the older and simpler GIF format. Unlike GIF it does not support animation and also generally takes up two times the space of a JPEG file and three times the size of a GIF file. It don't see it taking over anytime soon. ART. This is the reason why your web graphics look bad and only your freinds who have an America Online (AOL) Client Software package can open your pictures you send them. By default AOL compresses image files and send them to you as ART files. Its claimed it makes the pages load more quickly but all it does its conserve bandwidth (rate of data transfer). TIFF is a lossless format that can use file compression (called LZW compression). It doesn't result in as small a file as JPEG (which is why you don't use it on the web) but you do retain image qaulity. When compressed it is usually half its original size. It is best used for saving photos in this format and whenusing a simple conversion program you can convert them into different format for use in screensavers, wallpaper or web images.

Images I find are a great way to facilitate student learning as it captures the interest of students and able to facilitate their understanding of concepts through real life examples which images are able to do.

Sources (URLs Only):

http://www.wordstart.com/guides/imagefile.htm

http://moodle.cqu.edu.au/mod/resource/view.php?id=91805