Cookie~

Cookie: A text file on a computer's hard drive that stores information about a computer user. Many Internet sites automatically put a cookie on your computer; when you return to the site, the cookie on your computer makes the site run faster, and generally saves you from re-typing user names and passwords. Despite popular belief, cookies are not computer programs.

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glossary from http://electronic-medical-record.blogspot.com/2007/06/common-emr-medical-software-terms.html