These are not available by default in Joomla so you will need to create these yourself. To do this, follow the instructions below:-
1. Login into the Joomla administrator
2. Navigate to Site > Template Manager > Module Positions
3. In the column called Positions, find a blank field
4. Once found, enter the position name
5. Find another field and insert the other positions
6. Select Save
Yet in my administrator page there is no Site > Template Manager > Module Positions option? The Template Manager simply lists the various available templates but no 'Module Positions' link is there?