Software to remote into multiple stations and send them all the same inputs?

I know I've seen it once but can't find a name for it. Basically I had to do something to a lab of computers today so I connected remotely to each one and did what I had to do one by one. The process was exactly the same on all of them. Is there some software where I can connect to all of them and have my inputs send to all the computers? Example: I click browser icon, all computers click browser icon.