Many things have changed and advanced in the past 30 years. I think one of the most important things we have now that they didn't have back then is computers. They are such a great impact on society because they expedite research and many others things. Everything you need to know is right there. Along with using computers and internet for knowledge we use it to communicate too. Within seconds you can e-mail or IM a friend to tell them something. Computers have such a big impact on our generation that I can't imagine life without them.