How many ports are their?

Answer 1

The number of ports on a computer depends on the type of computer it is. The type of ports they have--for example USB, headphone, or HDMI--also varies greatly from computer to computer.

Answer 2

There are in total 65535 ports UDP/TCP ports available for use on the internet. People generally use 250 of them only.

Answer 3

65,536 tcp ports

and

65,536 udp ports

Most privileged services will run on the first 1,024.