What is significance of number system?

Answer 1

The decimal number system

In our daily life we instantly use numbers. Can you imagine a world without numbers? Think for a moment how we would live if there were no numbers. We use them to count, to express the result of a measure, to perform calculations ... We even used to encode numbers as diverse information: text, images, sounds, videos ...
Sometimes using other numbering systems. For example, in the field of computer used the binary, octal and hexadecimal. They all have a system similar to decimal equivalents, but in binary two units of an order equivalent to a higher order, so it is a system that uses only ones and zeroes. In octal equivalence between units is 8, so the digits used are eight: 0, 1, 2, 3, 4, 5, 6 and 7. In the hexadecimal system, 16 units of an order equivalent to a higher order, so they employ 16 digits ten decimal system added the letters A, B, C, D, E, and F. So thirteen units in the 1D write hexadecimal system.

Answer 2

It often comes in handy if you need to buy, sell, pay, count, cook, build, pour, weigh, time, or measure anything.