Digital Numbering System Interview Question Answer - 1

1	What is radix of the binary system?
	The radix of the binary system is two.
2	What is radix of the decimal system?
	The radix of the decimal system is ten.
3	Define : Bit
	Bit A binary digit is called as bit.
4	Define : Nibble
	Nibble A group of four bit is called as nibble.
5	Why the binary number system is used in the digital computers?
	Binary Number System There are switching circuits used in the computers which consist of two states likely ON or OFF. The semiconductor switching device such as diode, transistor can be OPEN or CLOSED at any one instant. These two states can be representing by binary number 0 or 1. Therefore the binary system is used in the computers.
6	Describe the advantages of using binary subtraction by complement method.
	Advantage of binary subtraction by complement If the binary subtraction is done by complement method, there is reduction in the hardware requirement. There is only one adder circuit is required for both addition and subtraction of any binary number by using complement method.
7	Write the full form of LSD and MSD.
	LSD Least significant digit MSD Most significant digit
8	What is meaning of the LSD and MSD?
	LSD It is a left most digit which has highest positional weight out of all the digit of any number. MSD It is a right most digit which has lowest positional weight out of all the digit of any number.
9	Explain the term : Digit
	Digit Each symbol in a number is called as digit.
10	What is binary number?
	Binary number A binary number consists of sequence of bits either 0 or 1.
11	Explain the term : Unit column
	Unit column The first bit to the left hand side of the binary number has weight 0.  This column is called as unit column.
12	What is meaning of ½ column in the binary number?
	½ column The first bit to the right side of the binary has weight of 2 – 1 . It is called as ½ column.
13	State the different methods to convert decimal number into binary number.
	There are two methods used to convert decimal number into binary number ( 1 ) Sum of weight method ( 2 ) Double – dabble method
14	How to convert given decimal number into binary number by double – dabble method?
	Double – dabble method The decimal integer is converted into equivalent binary number by successive division by 2 and decimal fraction is converted into equivalent binary number by successive multiplication method. This method is applicable for other base system also.
15	Which method is not used for binary multiplication in the computers?
	Paper method
16	Which are the methods of binary multiplication?
	Methods of Binary Multiplication Paper method Computer method

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