Answer :
Number System: A number system is a writing system for expressing numbers; it is a mathematical way to represent quantities. For example, the decimal and binary systems.
Number: A number is a mathematical object used to count, measure, and label. Examples include integers like 1, 2, 3, etc.
Digit: A digit is a single symbol used to make numerals. In the decimal system, digits are 0 through 9.
Positional Number System: In this system, the position of a digit represents its contribution to the number's total value. Common systems are decimal (base 10) and binary (base 2).
Non-Positional Number System: The value of a symbol in this system does not depend on its position in the number. Examples include Roman numerals.
Radix Point: The radix point is the dot or comma that separates the integer part from the fractional part of a number in positional numeral systems, akin to the decimal point in decimal numbers.
Base of a Number System: It is the number of distinct digits or symbols used in a particular number system. For example, base 10 for decimal and base 2 for binary.
Place Value: In a positional number system, the place value of a digit is determined by its position and the base of the system. In decimal, the rightmost place has a value of 1, the next has a value of 10, and so on.
Bit: A bit is the smallest unit of data in a computer, represented as a 1 or 0.
Byte: A byte consists of 8 bits and is a unit of digital information.
Nibble: A nibble is half of a byte, consisting of 4 bits.
Binary Number System: A base-2 numeral system which uses two symbols, typically 0 and 1. It is the foundation of computer data processing.
Octal Number System: A base-8 number system using digits from 0 to 7.
Decimal Number System: The most commonly used base-10 number system using digits 0 through 9.
Hexadecimal Number System: A base-16 number system using sixteen distinct symbols, typically 0-9 and A-F.