The Application Server software handles all application operations, including
Transaction Processing and Data access, between browser-based computers (PC)
and the company’s back-end business applications or Databases.
•The Application Server takes requests from the Web Server , runs the business logic to process transactions based on the request, and provides connectivity to the organization’s back-end Systems or Databases.
Alternatively the Software for handling Application Server operations could be a custom program or a CGI Script.
CGI Script is a compact program using Common Gateway Interface specification for processing data on a Web Server.