Trying to ELI5:
At my job, we have a computer that has a program, that can read and execute other programs.
We can just open notepad, type in the proper commands, upload it to the machine and the machine is gonna execute your program.
That machine has an address and can show the result of your program in a browser
<?php echo “Hello World!”; ?>
This would write the text, hello world in your browser
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It is all programs upon programs upon programs. The root of it all is written with 0s and 1s, machine code.
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