PORTS

There are Two Types Of Ports Are There:
1.Physical Port
2.Virtual Port

Physical Port :USB Port,Serial Port

Virtual Port :1-65535 Ports Are Present

PORT NO's

FTP(File Transfer Protocol) : 21
HTTP( Hyper Text Transfer Protocol) : 80
SMTP(Simple Mail Transfer Protocol) : 25
POP3 (Post Office Protocol) : 110
HTTPS(Hyper Text Transfer Protocol Secure) : 443