what are the ports in my computer for example port 80?

Answer 1

These are some typically known TCP/IP ports:

FTP: 21
Telnet: 23
SMTP: 25
HTTP: 80
POP3: 110
NNTP: 119

Here is a list: http://www.iana.org/assignments/port-numbers

In many cases, there are additional ports for some protocols such as the HTTPS port, 443, for secure, versus open, HTTP connections,

Answer 2

In programming, a port (noun) is a "logical connection place" and specifically, using the Internet's protocol, TCP/IP, the way a client program specifies a particular server program on a computer in a network. Higher-level applications that use TCP/IP such as the Web protocol, Hypertext Transfer Protocol, have ports with preassigned numbers. These are known as "well-known ports" that have been assigned by the Internet Assigned Numbers Authority (IANA). Other application processes are given port numbers dynamically for each connection. When a service (server program) initially is started, it is said to bind to its designated port number. As any client program wants to use that server, it also must request to bind to the designated port number.

Port numbers are from 0 to 65536. Ports 0 to 1024 are reserved for use by certain privileged services. For the HTTP service, port 80 is defined as a default and it does not have to be specified in the Uniform Resource Locator (URL).

Answer 3

Port 80 is a "software" port, not a physical one. There is no connector on your computer that is dedicated to port 80. These types of ports are network ports, used by protocols like TCP.

Answer 4

There are 64,512 ports in an X86 OS definition standard.
32,256 ports are reserved for internal use. the bottom 32,256 ports are for use by TCP/IP, networking (UDP) and other Internet applications.

All are software mapped.

Some are recorded as reserved for certain software uses.

More is available in a search of "ports" in http://kartoo.com

And, for safety, run programs and OSes that have most of the ports closed, unless specifically opened for a purpose, by running Linux, http://pclinuxos.com or using a free stand alone firewall like IPCOP at http://ipcop.org

Answer 5

Those ports are Appliction ports. Your computer uses them to tell what kind of application will deal with the data. for example port 80 is always HTML, so your pc knows to use HTML applications to handle the data.