12/3/2003
For example, an aspect ratio of 2:1 indicates that the picture is

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In computer displays and graphics, the ratio of the width of a picture or picture area to its height. For example, an aspect ratio of 2:1 indicates that the picture is twice as wide as it is high. The aspect ratio is

In a multiuser or network environment, the process by which the system validates a user's logon information. A user's name and password are compared against an authorized list, and, if the system detects a match, access is granted to the extent specified in the permission list for that user.

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