In house server with Android clicker for quizzing

[pengyou]

There are a number of websites now that allow people to host quizzes. Many of them have an app that can be installed on a smart phone - the student presses a "button" on the phone to answer the question. I am hoping to find an app to put on a computer that is in the classroom rather than having to tether to the internet. Does anyone know what words I should use to search for this?