My brain is a gooey blob. I do have maths O' Level, but numbers are definitely not my thing. I still use my fingers as an abacus. I'm easily impressed by those who do have the capacity for numerical juggling. A nephew of mine is a mathematical whizz, he works in the city (London money market) making forecast equations, whatever that means. When he takes his seven year-old kid for long boring trips in the car, they don't play 'I Spy' he sets him algebra challenges. Sounds like cruelty to me. But I'm already bearing off my off-topic post....
ASCII stands for American Standard Code for Information Interchange. Computers can only understand numbers, so an ASCII code is the numerical representation of a character such as 'a' or '@'.
If you were born before the invention of the internet, you may recollect it as a way in which to make simple drawings with numbers a millennia before the invention of Instagram and swooping pictures of cats or motorcycles.
I love the sub basic nature of this panzer humping a truck. Who wants to show how clever they are by leaving a 'drawing' of a motorcycle in the message panel? BP