In ICSE Mathematics Class 8 the language of machines is binary. This means that the language of the machine has binary values or two values, the combination of which is the data. These two states are represented by the on-state as 1 and off-state as 0. Let's start with the system of numbers that is more familiar, the one where we use 0 to 1. Students can get their ICSE Mathematics Class 8 study materials on the Extramarks website.

The numbers 0 to 9 are numbers in this number system. We call it a decimal system because we use a positional notation system when we write the decimal (base 10) numbers. Depending on their position in the number, each digit is multiplied by an appropriate power of 10. Students can get their ICSE Class 8 Maths Solutions on the Extramarks site.

The binary number system is also a numbering system for positional notation, but the base is not ten in this case, but two instead. Each digit position represents a power of two in a binary number. When we write a binary number, each binary digit is multiplied by a suitable 2 power based on their number position. ICSE Class 8 Maths Solutions are available on the Extramarks website.
There are only two possible values in the binary number system that can appear in each digit position instead of the ten that can appear in a decimal number. In binary numbers, only the numerals 0 and 1 are used.
Students can use the ICSE Mathematics Class 8 Solutions to study the number system. The base used in this number system is 16. So a given number is represented by 16 digits. This number system is called the hexadecimal number system and a power of 16 is represented by each digit position. The hexadecimal numerals are as follows.
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F; letters are added to the number system as the base is greater than 10. It is conventional and has no logical or deductive reason to take A, B, C, D, E, and F as part of the number system. Since the base numbers will need to be supplemented for any number system that has more than 9 as its base, the letters A to F are used in the hexadecimal number system. Students can get the best ICSE Mathematics Class 8 Solutions only on Extramarks.
https://www.extramarks.com/study-material/icse-class-8/mathematics