Important Digital Logic and Design Short Questions
Chapter: 1
Question 1:
What role does memory play in a Digital System?
Answer:
Memory in a Digital System stores data temporarily or permanently, allowing the system to access and process large amounts of information quickly.
Chapter: 1
Question 2:
How is RAM different from ROM?
Answer:
RAM is volatile memory that loses its data when power is turned off, while ROM permanently stores data and does not allow writing.
Chapter: 2
Question 3:
What is the Sum-of-Weights method used for?
Answer:
The Sum-of-Weights method is used to convert a binary number into its equivalent decimal representation by summing the weights of the binary digits (bits).
Chapter: 2
Question 4:
How does the Sum-of-non-zero terms method simplify binary to decimal conversion?
Answer:
The Sum-of-non-zero terms method simplifies binary to decimal conversion by summing only the weights of the non-zero binary bits, skipping the zero bits.
Chapter: 2
Question 5:
What is the process of converting a decimal number to binary using the Sum-of-Weights method?
Answer:
The process involves identifying the highest binary weight that contributes to the sum, marking it with a binary 1, subtracting the weight, and repeating until the sum reaches zero.
Chapter: 2
Question 6:
How is the Repeated Division-by-2 method used in decimal to binary conversion?
Answer:
In this method, the decimal number is repeatedly divided by 2, recording the quotient and remainder until the quotient is zero. The binary equivalent is obtained by reading the remainders from bottom to top.
Chapter: 2
Question 7:
What is the Repeated Multiplication-by-2 method used for?
Answer:
The Repeated Multiplication-by-2 method is used to convert decimal fractions into binary by repeatedly multiplying the fraction by 2 and recording the integer part until the fraction becomes zero.
Chapter: 2
Question 8:
How is binary addition similar to decimal addition?
Answer:
Binary addition is similar to decimal addition, generating a sum and carry bit, with the main difference being the range of numbers used (0 and 1 in binary).
Chapter: 2
Question 9:
How is binary subtraction performed?
Answer:
Binary subtraction is performed like decimal subtraction, generating a difference bit and borrow bit, with four possible outcomes depending on the input bits.
Chapter: 2
Question 10:
What is binary multiplication by shifting left?
Answer:
Binary multiplication by shifting left involves shifting the binary number to the left by a certain number of bits, effectively multiplying the number by powers of 2.