No I don't think that there were computers in the 1940's TV's just started in the 50's if there were computers (which I highly doubt) thaey wouldn't be anything like today's computers. A little bit of searching will show that there were primitive computers. They were mostly mechanical analog computers rather than electronic digital devices like we have today. They were mostly used for computing bomb and rocket trajectories. Some very early electronic computers were built in England and the U.S. to help decode encrypted Axis messages.