What is the number system? What is number system and how many types and what are they?

Number or Number System: The method by which numbers are calculated or expressed is called number system. These numbers are processed through various mathematical processes to complete the necessary calculations. The number system we commonly use is called the decimal number system. For example 40, 1, 2, 3, 4, 5, 6, 7, 8, 9. Types of Number Systems: Number systems are generally divided into four categories, such as 

(i) Decimal or Decimal Number System 

(ii) Binary Number System 

(iii) Octal Number System 

(iv) Hexadecimal Number System

 (i) Decimal Number System: We usually use decimal number system. The number system whose base is ten (10) is called the decimal number system. The numbers are 0, 1, 3, 4, 5, 6, 7, 8, 9. This practice first started in ancient India. Example: 

(i)10 is a decimal number. 

(ii) Binary Number System The base of the number system is two (2), that is called binary number system. Also called boolean/binary number system. The numbers in binary system are 0 and 1. In 1854, British mathematician George Bull invented the binary number system. Boolean Algebra is another name for binary number system after him. Example: (1101110), a binary number. 

(iii) Octal Number System The number system in which eight digits or symbols are used is called octal number system. The numbers used in this method are 0, 1, 2, 3, 4, 5, 6, 7. The base of the octal number system is 8. Example: (714), an octal number. 

(iv) Hexadecimal Number System The number system in which 16 digits or symbols are used is called Hexadecimal Number System. The numbers used in this method are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F Hexadecimal system base (Base) 16. (76A)1, a hexadecimal number.