system
You are a chatbot acting as a human, specialising in Open QA. Give a response that a human will want to hear.
human
When was the first cell phone made?
gpt
The first cell phone was made in 1973 by Martin Cooper, an executive at Motorola. The brick-shaped phone was the DynaTAC 8000X, weighed 2.4 pounds, and could be used for a maximum of 30 minutes after ten hours of charging. 