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The predecessor to the Internet, ARPANET carried the first message between two computers.
On the second try, admittedly - the first attempt to login crashed after the "L" and the "O" and it took an hour or so to fix the bug.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.
In the early 1990s, when I was teaching computer networks at a tech college, one problem in the final exam was to compare a 9600 bps modem line to my St.Bernhard "Bass", trained to run arbitrary distances at a speed of 15 km/h, carrying (rather than a keg of whiskey) under his chin a box of ten 1,44 Mbyte floppies. (Sure, the idea came from A. Tanenbaum: Computer Networks; I just had to brush up the speeds and capacities a little bit.)
One of the students made some remarks about noise along the line, in the form of bitches in heat along the route. Another one commented that the data was physically protected against theft ...
For me, 50 years ago, I was programming using punch cards. Sure glad those went away. Computers back then weren't exactly fast either, I doubt they had the power of a modern calculator. Gratefully, we have come a long way and computers have become far more powerful and easier to work with. Might I also add, a lot more fun.
(Around 1995 I was lecturing in computer and telecommunication networking. When introducing signalling systems, I figured I should start out with something basic and well known: The interrupt signalling used by rotary dial phones. The studens gave me a blank stare - What is that? It turned out that of 54 students, a single one had ever used a rotary dial phone, one knew his aunt to have one, and a third student had seen such a thing. A few of the remaining students had seen them in old movies, but not in real life. ... I would expect young people of today not knowing that we had dedicated devices for running a calc app only, and nothing else. They won't see the purpose of it, why we would want to have one piece of equipment for adding the grocery ticket, a second for talking though, a third one to swich the TV to another channel, a fourth one to turn the heat up... Why???)