Either hardware or software can be used for this control to prevent data loss. Hardware flow control using the modem makes use of a buffer to store data to be sent and data received. Flow control is necessary if the Communications port is locked at a higher rate than the connection rate. This refers to an interface element used within Web documents to allow users to send information back to a Web server. With a forms interface, the user is requested to type responses within entry windows to be returned to the server for processing.
Forms rely on a server computer to process the submittals.
They are becoming more common as browser and server software improve. It is a procedure used to transfer large files and programs from one computer to another. Access to the computer to transfer files may or may not require a password. Some FTP servers are set up to allow public access by anonymous log-on. Freeware Computer software which may be distributed on Bulletin Board Systems, and for which the author requests no license fee or registration fee.