Tomorrow is my exam on digital system design for 3rd year BTech CSE. Provide some questions with answers that can be asked in my exam. The topics include gates, K-map, half and ful... Tomorrow is my exam on digital system design for 3rd year BTech CSE. Provide some questions with answers that can be asked in my exam. The topics include gates, K-map, half and full adder, half and full subtractor, CLA, comparator, decoder, encoder, multiplexer, demultiplexer, parity generator, and Gray code.
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The question is asking for potential exam questions and answers related to digital system design, specifically covering various topics such as gates, K-map, adders, subtractors, comparators, decoders, encoders, multiplexers, demultiplexers, parity generators, and Gray code.
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[{"question":"Describe the working and design of a Half Adder.","answer":"A Half Adder is a combinational logic circuit that adds two single-bit binary numbers and outputs a sum and a carry. It is designed using one XOR gate for the sum and one AND gate for the carry."},{"question":"What is the difference between a Half Subtractor and a Full Subtractor?","answer":"A Half Subtractor subtracts two binary digits and outputs the difference and borrow, whereas a Full Subtractor takes into account an additional borrow-in from a previous stage."},{"question":"Explain the use of a 4-bit Carry Look-Ahead Adder (CLA).","answer":"A 4-bit Carry Look-Ahead Adder is used to add four binary numbers more quickly by reducing the time taken to calculate carry bits. It uses look-ahead carry logic to overcome the delay in ripple carry adders."},{"question":"How does a multiplexer function?","answer":"A multiplexer is a combinational circuit that selects one of many inputs and forwards the selected input into a single line. It functions based on select lines that determine which input to forward."},{"question":"Design a 2x4 decoder.","answer":"A 2x4 decoder has 2 input lines and 4 output lines. Each output is activated only for the unique combination of input conditions. It can be implemented using AND, OR, and NOT gates."}]
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Sources
- Adders and Subtractors in Digital Logic - GeeksforGeeks - geeksforgeeks.org
- Full Subtractor in Digital Logic - GeeksforGeeks - geeksforgeeks.org
- Half & Full Subtractor, Truth Table, Circuit Diagram - Testbook - testbook.com
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