Our website provides solved previous year question paper for Digital Electronics from 2012 to 2013. Doing preparation from the previous year question paper helps you to get good marks in exams. From our DE question paper bank, students can download solved previous year question paper. The solutions to these previous year question paper are very easy to understand.
1. Number Systems (10hrs)
1.1 Decimal, binary, octal and hexa-decimal number systems and their
inter-conversion
1.2 Binary and Hexadecimal addition, subtraction and multiplication
1.3 1’s and 2’s complement methods of addition/subtraction
2. Gates (10hrs)
Definition, symbol and truth tables for inverter, OR, AND, NAND, NOR and
X-OR exclusive-AND gates
3. Boolean Algebra (10hrs)
3.1 Boolean Relations and their applications
3.2 DeMorgan’s Theorems
3.3 K-Map upto four variables
4. Combinational Circuits (10hrs)
4.1 Half adder, Full adder
4.2 Encoder, Decorder
4.3 Multiplexer/Demultiplexer
4.4 Display Devices (LED, LCD and 7-segment display)
5. Flip-Flops (10hrs)
5.1 J-K Flip-Flop
5.2 R-S Flip-Flop
5.3 D-Type Flip-Flop
5.4 T-Type Flip-Flop
5.5 Applications of Flip-Flops
6. Shift Registers and Counters (10hrs)
7. A/D and D/A Converters (6 hrs)
7.1 A/D converter (Counter ramp, successive approximation method of
A/D Conversion)
7.2 D/A converters (Binary weighted, R-2R D/A Converter)
8. Semi-conductor Memories (4 hrs)
Types, merits, demerits, and applications
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9. PLCs (10 hrs)
9.1 Process Control, advantages and applications
9.2 Introduction to PLCs, Building blocks of PLC, Functions of various blocks
9.3 Working of PLC
- Basic operation and principles of PLC
- Architectural details of processor
- Memory structures, I/O structure
- Programming terminal, power supply