https://www.youtube.com/watch?v=47NRaBVxgVM
its important to know the history of the internet.
It also sprinkles in some of the important things to know like TCP, IP. Nothing too deep. Il see how I like it, if I get any info that I deem valuable. Im going to study the CCNA later soon anyhow.
Its a blend of liberal arts and engineering. Technology does not exist in a vaccum, and it is not static, it always will change. And if we don’t take a look back, we will have no good idea of how to deal with it in the future.
The course outline looks like this:
computer history, then network history, then security history
this is exactly how much they go into networking:
OSI layers, TCP/IP internet protocol, how applications work
High stakes research
WAR! WAR! VIOLENCE! WAR!!!
the internet is synonymous with communication.
This is the outline:
the start of it all is situated in bletchly park. There are many heros located in bletchly park
bletchly park started as a top secret code breaking effort by the british government during WW2. There was no time in history like WW2. Technology was developed so rapidly and so powerful. Jet airplanes, radios, radar, so many things were invented. War is terrible, but it does cause the government to invest heavily on research.
There were 10,000 people working together to decode messages from german radios. They call WW2 a world war, because it touched geographically, more of the world than any wars previously. As a result, a lot of communication had to be wireless, but the problem with wireless is that anybody can put up a antenna and listen to the wireless signal. Theres no way to hide a wireless signal like you can a physical wire. So the trick was to make an encrypted wireless signal. This was a key technology, code making and code breaking.
above is the engima, made by germany. They scrambled intelligence.
Now, the crackers in bletchly park used mathematics and said, these codes are more crackable than we think. Folks from poland helped too in the effort saying, this is what we did to crack it! They were working heavily with the mathematics of cracking, and so they built these machines.
There are 2 cracking machines.
BOMBE was a super fast mechanical computer also very noisy. Gears that spin, gears that move back and forth. And it looks for patterns. As its spinning, it is looking for possible coding combinations. Brute force checking of different possibilities.
As german encryption improved, they couldn’t encrypt it with a mechanical computer anymore, so they made a friggin massive electronic computer. It was made as a general purpose electronic computer kept secret from the world until the 60s and 70s. As it was kept a secret, a lot of history textbooks don’t mention this as the first computer, and it was a very old one.
bletchly park at this time had all kinds of people. Language experts, mathematicians, engineers, welders, and they were all solving one problem of decrypting german transmissions. They inadvertantly solved a different problem though, in electronic communications as a whole. Turing was very critical. So was welchman, bombe, keen
and aswell, the informants from poland
university colleages, this whole thing was a collective of very bright people, well funded and they created something magnificent.