How does a CGI script work?

Related questions

1. What is CGI in web design?
2. Is Perl a server side scripting language?
3. What is PHP FPM pool?
4. What are CGI files?
5. Is Perl faster than Python?
6. What is PHP FPM service for Apache?
7. What is CGI script in HTML?
8. Is CGI cheaper than hand drawn?
9. What is FastCGI server?
10. Is Perl frontend or backend?

Tags

1. #gateway
2. #button
3. #other
4. #programs
5. #common
6. #reader
7. #fills
8. #aolserver
9. #someone
10. #running
11. #server
12. #pages
13. #interface
14. #sends
15. #dynamically
16. #program
17. #often
18. #perform
19. #standard
20. #clicks
21. #generate
22. #action
23. #causes
24. #submit