Binary numbers have the virtue of being simple enough that they can be represented by a purely physical system, in which a magnetic north pole can represent (let us say) a 1, and a magnetic south pole can represent a 0, or a current being on can represent a 1 and the same current being off can represent a 0. In other words, the physical world contains analogs of binary systems. If you wanted to use decimal numbers you would have to find a physical system that has ten variables, which are relatively easy to measure and to create as needed, and that is not going to be easy.
The computer understands binary because the 1 means on and the 0 means off, so that controls how it operates. Binary language is then converted to our number system where the numbers represent things. ASCII code is used to convert binary to text.
Binary Number System represents the way Computer understands the instructions or data. Binary is the primary way humans can save data in Physical form, such as Land & Pits on Optical Media (CDs or DVDs).Computer interprets these binaries (collectively as BYTES - 8 bits) as instructions or data to perform its functions.So Binary system is the method of writing instructions & data for Computers.
Binary-
Binary Number System
The first computer to use the binary number system was probably the Z1, started by Konrad Zuse in 1936. It was a mechanical computer, not fully programmable, but is still considered a computer.
Binary
Computers are based on a binary number system.
Binary number system ,which has only two digits 0 and 1.
A Binary code is a way of representing text or computer processor instructions by the use of the binary number system's two-binary digits 0 and 1.So the purpose of binary code is to issue human readable code, changed to machine code (binary) that the computer understands and can execute the instructions.
2 (i.e., 0 or 1)
binary number system used in computers because computer can understand only binary language as it starts from 0and 1. which makes computer easier.
They use the binary sysem because the number 1 means the switch is turned on and the number 0 means the switch is off. There is no way to use the decimal number system.