What's the difference between Unix and Linux and Windows?

Related questions

1. What does D mean in Linux?
2. How does netstat command work?
3. What is CWD command in FTP?
4. Is FTP dangerous?
5. How do I know if FTP server is running Windows?
6. What does do in Linux?
7. What are the advantages of Linux over Windows?
8. How do I map an FTP drive?
9. Does nslookup use ICMP?
10. What type of information can netstat provide?

Tags

1. #cheaper
2. #licensing
3. #differences
4. #version
5. #linux
6. #price
7. #because
8. #thing
9. #popular
10. #software
11. #windows
12. #hosting
13. #between
14. #basically
15. #stability
16. #functionality