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I have powered off all the PC's in my classroom. You can see on the image that some ar red, some yellow and others are grey. What is the significance of each colour? Thanks
sorry - link here: https://drive.google.com/file/d/1bWxsdrmsh0WCNUkax4UvpmDZ-ysxGMZU/view?usp=sharing
Anyone please? Mods - do you read these posts?