Is their anyway 2 get pictures onto your computer without a usb cable?

Is their anyway 2 get pictures onto your computer without a usb cable I was at one of my friends house and they took a picture with their camera and it uploaded 2 his computer and he didn't even plug it in or anything
Can I do this I have a Nikon cool pixs camera

He proably emailed it to himself or used Bluetooth. It all depends on the model of the camera

Some cameras have the ability to send images (via Wi-Fi) to email or facebook. Others have a Wi-Fi sd card that does the same thing.
http://www.eye.fi
A third option would be a computer that has a built-in slot to accept the memory card.

It all depends on the camera. I know that the Nikon d3200 can transfer photos over Wi-Fi, but I don't know of the Nikon cool pixs having this function.