Easy to customize powerpoint where you can easily change the background to get 37 slides of numbered desktop backgrounds for your computer lab. Choose from 25 high resolution images available.How to use this resource:1- Copy your favourite background from slides 33-582- Right click on any slide, choose format background, then click “clipboard” and “apply to all”3- Delete this slide and all other unwanted slides at the end.4- Save this powerpoint as PNG and choose “All slides”5- You will get 37 s