Yes Internet, do keep up. The web is from the 1990s but Internet much older.
I have no need to "keep up", and I stand by what I said.
Yes, it existed then, and I wouldn't dream of suggesting only only the World Wide Web classes as internet. I was using it before the web existed.
But "we" did not have internet in the late 70's. It was limited then to a few universities and major institutions. I doubt very much if any school in the UK had internet access in the 1970s. TCP/IP wasn't developed until the very end of the 70's, and really was necessary for the internet to move beyond the experimental stage.
I started work in 1981, moved to BT in 1984, and it wasn't until 3-4 years after that before we had email and usenet available to the commercial data processing developers - though I am sure those were available in the BT labs by the time I started.
If you are in your late 50's (as you say above), then it may
just have been available in your school by the time you reached the 6th form - But I had finished university by then (I'm 65 now, so 6-10 years older than you).