Some notebooks may have a TRRS(tip ring ring sleeve or 4 contact points) jack. That would be a single jack that can deal with headphones and mic over a single plug(with an adapter). This is the same type of plug cell phones use.
If you just have a normal TRS(tip ring sleeve or 3 contact points) jack, you will need to look into an external usb sound card or stick. The most basic ones look like a flash drive with 2 jacks on them.
I recommend using a extension cable with these stick type sound cards if you happen to be the kind of person who is prone to bumping things connected to the laptop since the extension cable is still smaller than the card. USB ports are too easy to break.