Computers use different number systems to represent data and instructions. The three main number systems used in computers are:
Binary number system: Binary is a base-2 number system that uses only two digits, 0 and 1, to represent all values. It is the most fundamental number system used in computers, and all digital devices use binary to represent data.
Decimal number system: Decimal is a base-10 number system that uses ten digits, 0 to 9, to represent all values. Although decimal is the number system that humans are most familiar with, computers typically do not use decimal in their operations.
Hexadecimal number system: Hexadecimal is a base-16 number system that uses 16 digits, 0 to 9 and A to F, to represent all values. Hexadecimal is often used in computing because it allows for a more compact representation of binary values.
Each number system has its own advantages and disadvantages, depending on the application. Binary is the most efficient for digital processing, while decimal is the most intuitive for humans. Hexadecimal is a good compromise between the two, offering a more compact representation than binary while still being easily understandable by humans.
