To be fair, the "support" payments for these systems started at the beginning; in the late 50's / early 60's. But it wasn't considered "Subscription Software".

To be fair, the "support" payments for these systems started at the beginning; in the late 50's / early 60's. But it wasn't considered "Subscription Software". AutoCAD was considered on of the first to make the transition away from box sales and they definitely lowered the purchase prices (vs annual subscription) to make adoption easier.