Terminology

Digital Systems	Digital systems are binary systems which use signals represented by only two values - zero or one.
Decimal Number System	The decimal number system has base 10 as it contains 10 digits only "0", "1", "2", "3", "4", "5", "6", "7” ", "8” ", "9” " and "10”.
Binary Number System	The binary number system has a base value of 2 with two digits allowed in the system which are "0" and "1".
Octal Number System	The octal number system has a base value of 8 and has 8 different digits "0", "1", "2", "3", "4", "5", "6" and "7”.
Hexadecimal Number System	The hexadecimal number system has a base of 16 with 16 distinct symbols which are "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", and "F".
Hexadecimal Number System	Least Significant Bit
MSB	Most Significant Bit