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Digital Systems

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Course Name        BCA (Bachelor of Computer Application)

Subject Code       BC0036 (Digital Systems)

Get Questions        PART - A    PART - B    PART - C

Digital Systems Syllabus.

Unit 1 Number Systems
Introduction to Number Systems , the Decimal Number System, The Binary Numbering System, Counting in Binary, Binary to Decimal Conversion, Decimal to Binary Conversion
, Sum of Weight Method, Repeated Division Method, Repeated Multiplication, The Octal Numbering System, Counting in Octal, Octal to Decimal Conversion, Decimal to Octal
Conversion, Sum of Weight Method, Repeated Division Method, Repeated Multiplication, Octal to Binary Conversion, Binary to Octal Conversion, The Hexadecimal Numbering
System, Hexadecimal to Binary Conversion, Binary to Hexadecimal Conversion, Hexadecimal to Decimal Conversion, Hexadecimal to Octal Conversion, Decimal to Octal
Conversion, Sum of Weight Method, Repeated Division Method, Repeated Multiplication Binary Arithmetic, Binary Addition, Binary Subtraction, Binary Multiplication, Binary
Division, Complementary numbering systems: 1’s and 2’s, Complements, Binary subtraction using 1’s complementary Method, Binary subtraction using 2’s complementary Method, Binary Coded Decimal (BCD) Numbering system, BCD Addition

Unit 2 Boolean algebra
Introduction to Boolean Algebra , Addition and Multiplication in Boolean algebra , Binary Logic Functions, Logical Gates and Truth Tables , NOT Logic , AND Logic , OR Logic ,
NAND Logic , NOR Logic , Ex – OR Logic , Ex – NOR Logic , Boolean Rules and Laws , Commutative law , Associative Law , Distributive Law , Boolean Rules , De Morgan’s Theorem

Unit 3 Combinational Logic
Introduction, Realization of switching functions using logic gates, Canonical Logic Forms, Sum of Products Form, Product of Sum Form, Universal Gate, NAND Gate as Universal Gate, NOR Gate as Universal Gate, Realization of Boolean Functions using Universal Gates, Timing Diagrams and Synchronous Logic, Realization of Combinational circuits from the truth table

Unit 4 Combination logic realization
Introduction, Karnaugh Map or K – Map, Plotting a Boolean expression, Logic expression simplification with grouping cells, Quine McClusky Method, Prime implicants, Prime implicant chart , Multiple Output functions

Unit 5 Analysis and Design of Combinational Logic
Introduction , Binary adders , Half adder , Full adder , Binary Subtractor, Half subtractor, Full subtractor, Parallel Binary Adders , BCD Adders, Binary Comparator or Magnitude Comparator , Decoders , Basic Binary Decoder, 3 line to 8 line Decoder , Encoders , Decimal to BCD encoder , Octal to Binary Encoder , Priority Encoder , Decimal to BCD
priority encoder , Code conversion , BCD to Binary conversion , Gray Code , Binary to Gray Conversion: , Gray code to Binary Conversion , Multiplexers or Data Selectors ,
Multiplexers as logic function generators , Demultiplexers , Parity Generators and Parity Checkers , Parity , Detecting an Error

Unit 6 Latches and Flip Flops
Introduction , Latches: The S-R Latch , Active HIGH S-R Latch (NOR gate S-R Latch) , Active Low S-R Latch ( NAND Gate S-R Latch) , Gated Latches , Gated S-R Latches , Gated D-Latch or D-flip-flop , Edge triggered Flip-Flops , Edge triggered S-R Flip-Flop (SR FF) , Edge triggered D-Flip-Flop (D-FF) , Edge triggered J-K Flip-Flop (J-K FF) , Asynchronous inputs: PRESET and CLEAR , Master-Slave J-K Flip Flop

Unit 7 Asynchronous Counters
Introduction , Asynchronous Counters , Negative edge triggered 2-bit ripple Up-counter , Negative edge triggered 2-bit ripple Down-counter , Negative edge triggered 2-bit ripple up/down-counter , Design of modulus counters , Cascading of Ripple Counter , Integrated Circuit Asynchronous Ripple Counter , IC 7493 – A 4-bit Binary Counter , IC 7490 – A
Decade Counter

Unit 8 Synchronous Counters
Introduction , Up- Counters , Two bit Synchronous Binary Counters , A Three-bit Synchronous Binary Up-counter , A Four-bit Synchronous Binary Up-counter , Synchronous Decade Up-counter , Down- Counters , Two bit Synchronous Binary Counters , A Three-bit Synchronous Binary down-counter , A Four-bit Synchronous Binary downcounter , Synchronous Up-down counters

Unit 9 Shift Registers
Introduction , Shift Register Classification , Serial-in, Serial-out shift register , Timings in Serial Shift operation , Serial In, Serial out Shift operation – 3 register combination , Serial In, Parallel out Shift Register , Parallel In, Parallel out Shift Register , 74LS395 – A Universal Shift Register , Serial in, Serial Out Right Shift Operation of 74LS395 , Serial in, Serial Out Left Shift Operation of 74LS395 , Ring counters , Johnson counters

Unit 10 Data Converters
Introduction, Digital to Analog Converters(DAC), Binary Weighted Input Method, The R-2R Ladder DAC, Analog to Digital Converters(ADC), Flash Type ADC, Staircase
Ramp or Digital Ramp Type, Slope Integrator Type, Successive Approximation Method, Practical Considerations of ADC’s, Comparison of ADC Circuitry

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