Client Computer hardware or software used by an end user on a computer network or the Internet to query a remote server. A Web browser is an example of client software. Also refers to a local computer. A standard language is used to define client-server interaction. Cookie A unique string of letters and numbers that a Web server stores in a file on a user's hard drive.
Web developers use cookies to store information on a visitor's personal computer.
For example, cookies can keep track of purchases a visitor wants to make while shopping through a Web catalog. Cookies may work through a single visit to a Web site or may be set to work through multiple sessions when a visitor returns to a site that includes customized information, such as My Netscape. The digital equivalent of positive identification, such as a driver's license. Issued by various certificate authorities, digital certificates are used to prove that a Web site, or a visitor to a Web site, is the entity or person they claim to be. Digital signatures are generated by digital certificates.