I have a programmable universal remote, that will power up several devices at the push of one button. Of course, not much help for the PC or laptop, or even the projector, if doesn't have a remote. Remember there was a card you can plug into a laptop, so you could us it as a universal remote, but that was maybe 10 years ago. There probably is something out there, but I don't work in an office environment, so don't keep up on such things. A power strip my work for the projector and home theater, but the computers, you'd have to wait for them to boot up, but you could have them start your presentation automatically.