This is much more true than the parent comment, but nobody invented the concept of an integrated system in a case with keyboard and screen. That's because said

This is much more true than the parent comment, but nobody invented the concept of an integrated system in a case with keyboard and screen. That's because said concept is called a "video terminal" and had existed for at least a decade prior to the mid-70s. In fact one of the prime target markets for the first generation 8-bit CPUs was...video terminals. A late-70s personal computer is really just a video terminal that has been made programmable by the user. The hardware is pretty much identical.