Is it not possible to include port number in the DNS entry?

See more:

IIS

DNS

I got to know that it is not possible to include port number in the DNS entry. Is it correct?
If yes what are the options available in this situation where I need user friendly url to direct my local server port 8080 hosted tfs instance. (ex. 'http://myfs.abc.com' to direct 'http://11.11.11.10:8080/tfs')

This will only need to access users in local area network and the default port for the TFS is 8080.

Also I heard 'SRV records' can be used in this purpose. Can you explain what is 'SRV records' and what is the link between 'DNS' and 'SRV records'.