I really love the internet, In fact it was until the late 2000s, its services and technologies had been put into virtually every aspect of our human lives, pretty crazy. 
That is right. The Internet has changed our lives significantly. I remember when you had to call the movie theater to find out what was showing that day.
I remember that too lol, They say the Internet dates back to research commissioned by the United States Federal Government in the 1960s to build communication lines with computer networks.
Yeah, it was a government project with a few colleges. So glad it became very popular and rapidly expanded.
Me too, the internet has single handily changed the lives of many people it even serves as our very jobs and people dont even have to leave there homes to buy stuff. 
Internet allows people to work from home and videoconference with their kids. Also allows instant communication on our smartphones.
Yes its truly amazing, Its wild to think that the Internet began with the development of electronic computers way back in the 1950's. Computers back then were the size of a bus!
I remember how big those vacuum tubes were. These days transistors are thousands of a millimeter!
I believe they were a type of thermionic tube or thermionic valve, But I know we dont use them today, they are mostly im museums. 
They are pretty interesting to look at in museums. There used be spares when one of them shorted out. People had to take turns using the computer because it could only do one thing at a time!