Zero and one
A: Humans use the decimal or the 10 numbers systems since i guess we have ten fingers. And we do the mathematics using the ten digit numbers. Computers use the binary system two digits "0" "1" and it recognizes as true or false that is machine language all the computations are based on these two binary numbers
two, zero & one
binary language
Binary
Computers use the binary system because, electrically, it is the simplest system to use. With the binary system, there are only two types of electrical states: on and off. With other systems, there would have to be different voltages that signify different numbers.
All computers use binary.
Yes, binary language doesn't vary by country.
BINARY
The answer will depend on who "they" were or are.
binary
You simply use more binary digits.
They are the best numbers for computers to use. In simple terms, as computers are electronic they use electronic currents, which can be on or off, like a light switch. 1 and 0, which are the only digits binary has, can be used to represent these two states. Binary forms the basis to all computer memory and operations.