This question already has an answer here:
I asked a question about the history of the use of F5 for saving in games. It was closed for the reason of "Questions asking for help identifying a game, whether based on a description, or feature list, or any other set of criteria (i.e. "What was the first game to…") are off-topic":
However, another question asking about the history of WASD in games seems to be popular and well answered. What is the origin of the WASD key scheme?
Can someone explain, or perhaps I can phrase my question in a slightly different manner?