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Home > Download > SMU - Question Paper > BCA > BC0036

This is the collection of
Sikkim Manipal University (SMU) question and answers for Digital Systems. It will help
to prepare your examination. All question paper are
classified as per semester, subject code and question type of Part A, Part B and Part C with
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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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