While the 'Intellectual Property' terminology probably did start in the 1980's alongside personal computers, the concerns about wide scale infringement definite

While the 'Intellectual Property' terminology probably did start in the 1980's alongside personal computers, the concerns about wide scale infringement definitely existed prior to that via Xerox (i.e. copy) machines (paper), audio tape/cassettes (sound) and VCRs (video) which made widespread consumer duplication trivial. This was all a thing before 1980, it just exploded as the technology reached the masses in the 80's. Copyright infringement was most definitely a thing before then and damages could be awarded even if you had no income from it. See statutory damages. Really the only thing that changed with computers was the ability to make perfect copies, thanks to the data being digital. Prior to that, the problem was somewhat mitigated by the analog nature of it and that by the time you got to the 3rd or 4th generation copy the quality had significantly degraded.