1st computer names i remember are things like Sperry-Univac, and the brains were somewhere else in a sealed room with a hollow floor where they piped the air from antarctica.
You did not go in here, because the room sized monstrosity could not handle static, humidity, dust, heat, etc.
Mind you the whole room was not the CPU, just a single tape drive was about the size of a large standup freezer.
What you go to do, if you were very lucky, was log some time share on the system, and get to connect to this thing on a lovely black and white terminal with something like a 12 inch screen.
The amount of time available was very limited, so you spent a lot of time with pencil and paper trying to make sure you had no errors in your program, so you could type it in and run it a few times before your time ran out.
You learned to type fast even if you could not touch type
Then my school got it’s own small terminal system, sadly i forget what kind it was
It was not anything fancy, was fairly slow and required a lot of swapping out of its semi rigid disks, they were like 10 or 12 inches and only semi flexible (no not a disk pack)
The system was so slow that sometimes you could literally see it time slicing from one terminal session to the next one.
At the time it was still kind of amazing, now days you’d get some kid raging over the time it took.
Wish i could remember what system it was, i think it was one from NCR but i could be wrong. It was probably slower than 2Mhz, but at the same time it was awesome because we could copy the concept of a game we had come across running on the time shared mainframe, a MUD.
Of course then we found hiding and leaving the mud process running pretty much slowed the entire system to a crawl for other classes, teacher was not exactly happy but not exactly mad either.
I never became a great coder, i did better at scripting but i liked taking the hardware apart better 
1st hard drive i ever saw was as big as the steering wheel on your car, and about 6 or 7 inches tall.
That was just the platters, the drive itself remained inside the computer.
These were the things that when the heads crashes they literally crashed and cut gouges into the disks ruining them and the heads.
It was a long time between that and having any kind of functional personal computer
(long in youth years anyways)
Getting trash80’s was awesome though, you could EXPAND them!!:eek:
A lot of the learning back them was on your own trial and error, there were no great books at first and no google of course, it was kind of fun though because just figuring something out was kind of like some mystery adventure game in itself.