Final answer:
Browser applications are thin-client applications that do not need to be installed on users' computers and run in a web browser, utilizing the Internet for data transmission.
Step-by-step explanation:
Browser applications are thin-client applications that need not be preinstalled on the users' computers. Unlike traditional applications that require installation, these applications run directly within a web browser. There is no need for specific programming languages like COBOL, VisualBasic, or C++ on the user side, as the processing is typically done on the server side, with the browser acting as a client to display the user interface. Browser applications also rely on the Internet to communicate and transmit data, rather than being restricted to internal networks.