The main points which you should include are:
1) Work of programming languages
2) Types of programming languages
3) Basic Programming Languages
4) Places on software or programmes where different programming languages are used
And after this you can give a vast description of how programming languages are used.
You can include powerpoint animations and audio sounds if you wish, I prefer not to add too much animations.
You can use any pretty template you like, just remember to add 'Bold' character style with it so that your content will be clearly visible when you display it with projector!