Analog computer
> What is an analog computer?
There are analog computers and digital computers. Digital computers are the most common and you're using one now to read this.
Digital computers have a fixed number of "states". The smallest unit of memory in a digital computer is a bit, it can be 1 or 0, nothing else. So if a digital computer has a billion bits of memory, it can have 2 to the billionth states - a fixed number.
Analog computers don't have a fixed number of states. They might use voltage levels instead of bits. A level can be 0, 1, .5, .25, .125, ... etc.
An easy way to think of the difference is with watches. A digital watch can only display a fixed number of times: 12:00:00, 12:00:01, etc. An analog watch (one that uses hands) can theoretically display an infinite number of times: 12:00:00.01, 12:00:00.001, 12:00:00.0001, etc.
I have never heard of an application of analog computers for blackjack.
ND