Yup, AMC was attempting to mirror the feel of Mad Men, but in a different era. And to a certain extent they did. But they also allowed it to grow into its own thing, and that made it much better than just a copycat.
I was born in '71 as well, and got to watch and learn firsthand as the computer revolution unfolded. It was a great time to be a kid, and to be a computer nerd.