★ Win Forms vs. Web Forms. Know the difference★

Both of these are “applications” or programs that execute on a Windows computer.

A Win Form” application is a program running on your local PC, the one that you are looking at right now.
Possibly the app is accessing another computer on your network in a “Multi-Tier” configuration.
Programs like WORD or INTERNET EXPLORER ( tm Microsoft) are Win Form Apps, and their user interface, or “Front-End”
controls access the code inside of windows to display words and text boxes on your screen .

A “Web Form” application runs over the web. The user interface is displayed inside your browser, (or anyone else’s browser) .
The web server sends HTML code to your browser to paint the words or text boxes on your screen,
but the actual computer program executes back at the web host.
The web host may have several computers doing different jobs.
There will be a web server, and possibly an application server and a database server.