Digital Electronics (BCA101) crash course, Online BCA, Semester 1:
This subject covers number systems, logic gates, Boolean algebra, Karnaugh maps, combinational and sequential circuits such as adders, multiplexers,…
- 17 video lessons
- 4h 57m
- Study notes
- 75 quiz questions
- Assignment
17 lessons in Digital Electronics
Each lesson pairs one topic with a hand-picked video, trimmed to the part that teaches it.
About this subject
This subject covers number systems, logic gates, Boolean algebra, Karnaugh maps, combinational and sequential circuits such as adders, multiplexers, flip-flops, counters and shift registers, along with memory types and digital-analog conversion. After it you will be able to convert between number bases, simplify logic expressions, design and analyse combinational and sequential circuits, and explain how DACs and ADCs work.
- 1
Number Systems and Base Conversion
Module I, Number System: Decimal, Binary, Octal, Hexadecimal Number Systems and Conversion of the bases
Computer Number System | Binary/ Decimal/ Octal/ Hexadecimal | All Conversion in One Shot | CTA· Computer Tech Academy· 31 min
Watch lesson - 2
Logic Gates and Truth Tables
Module I, Number System: Introduction to logic systems, Positive and negative logic, Logic functions - NOT, AND, OR, NOR, EX-OR, EX-NOR, Truth tables
What is Logic Gate? full Explanation | AND, OR, NOT, NAND, NOR, XOR & XNOR Gates· Learn Coding· 18 min
Watch lesson - 3
Boolean Algebra and De Morgan's Theorems
Module I, Number System: Boolean algebra, De Morgan's theorems
Boolean Algebra Full Course: Rules, Laws, De Morgan's, & Simplification | Hindi | BCA· One Bit Extra· 33 min
Study notes 5 quiz questionsWatch lesson - 4
SOP, POS, Minterms and Maxterms
Module I, Number System: Standard forms for Logical Expressions - Sum of Products, Product of Sums, Specification of Logical functions in terms of Minterms and Maxterms
Boolean Function Representation: SOP and POS Form | Minterms and Maxterms Explained· ALL ABOUT ELECTRONICS· 21 min
Study notes 5 quiz questionsWatch lesson - 5
Karnaugh Maps with Don't Care Conditions
Module I, Number System: Karnaugh Maps, Simplification of Logical functions, Introduction of "don't care" states
Don't Care Conditions in Karnaugh Map (with Solved Examples)· ALL ABOUT ELECTRONICS· 12 min
Study notes 5 quiz questionsWatch lesson - 6
Multiplexers, Decoders and Encoders
Module II, Combinational Building Blocks: Multiplexers, Decoders, Encoders
Multiplexer ll Demultiplexer ll Decoder ll Encoder ll Combinational circuit ll· CTH EDUCATION· 25 min
Study notes 5 quiz questionsWatch lesson - 7
Half Adder and Full Adder
Module II, Combinational Building Blocks: Arithmetic circuits, Half Adders and Full Adders
Half Adder and Full Adder Explained | The Full Adder using Half Adder· ALL ABOUT ELECTRONICS· 14 min
Study notes 5 quiz questionsWatch lesson - 8
Half and Full Subtractor, Negative Numbers
Module II, Combinational Building Blocks: Half Subtractor and Full Subtractor, Representation of negative numbers, revisited
Subtractors Explained: Half & Full Subtractor Circuits - Digital Logic Design· CodeLucky· 3 min
Study notes 5 quiz questionsWatch lesson - 9
RS Latch and Clocked RS Flip-Flop
Module III, Flip-flops: The RS latch, the clocked RS flip-flop
SR Latch | NOR and NAND SR Latch· Neso Academy· 17 min
Study notes 5 quiz questionsWatch lesson - 10
JK, Master-Slave, D and T Flip-Flops
Module III, Flip-flops: JK Flip Flop, the Master-Slave JK flip-flop, Delay and Toggle flip-flops
JK Flip Flop in Hindi|T Flip Flop Flop|D Flip Flop in Hindi| Digital Electronics| COA|Hindi· Zeenat Hasan Academy· 19 min
Study notes 5 quiz questionsWatch lesson - 11
Asynchronous Ripple Counters
Module III, Flip-flops: Flip-flops in counter circuits, Asynchronous (ripple) Counters (UP/DOWN)
Asynchronous Counters (Ripple Counters) Explained | Binary Up/Down Ripple Counters· ALL ABOUT ELECTRONICS· 18 min
Study notes 5 quiz questionsWatch lesson - 12
Synchronous Counter Design
Module III, Flip-flops: Synchronous Counter design (UP/DOWN), Non Sequential Counting
Synchronous Counters Explained (Part-1)· ALL ABOUT ELECTRONICS· 26 min
Study notes 5 quiz questionsWatch lesson - 13
Shift Registers, Ring and Johnson Counters
Module IV, Shift Registers: Shift registers in general, Ring Counters, Johnson Counter
Lec - 48: Shift Registers | SISO, SIPO, PISO, PIPO· Gate Smashers· 8 min
Study notes 5 quiz questionsWatch lesson - 14
RAM and ROM Types
Module IV, Shift Registers: Introduction to Memory, Primary: RAM, Static RAM, Dynamic RAM, ROM, PROM, EAPROM
ROM (Read Only Memory) and RAM (Random Access Memory) || Digital Electronics· ElectroTech CC· 20 min
Study notes 5 quiz questionsWatch lesson - 15
Secondary Storage: Floppy, Hard Disk, CD-ROM
Module IV, Shift Registers: Secondary: Floppy Disk, Hard Disk, CDROM
What is Secondary Memory | Magnetic Tape | Magnetic Disk | Optical Disk | Flash Memory |· Student Notes· 9 min
Study notes 5 quiz questionsWatch lesson - 16
Binary Weighted Resistor DAC
Module V, DACs and ADCs: Binary weighted resistor DAC, Resolution, linearity and settling time of DACs
Binary Weighted DAC: Basics, Circuit, and Working in Digital Electronics· Engineering Funda· 15 min
Study notes 5 quiz questionsWatch lesson - 17
Successive Approximation ADC
Module V, DACs and ADCs: Successive approximation ADC
Successive Approximation ADC Explained· ALL ABOUT ELECTRONICS· 8 min
Study notes 5 quiz questionsWatch lesson
Assignment
Digital Electronics Problem Set: From Number Systems to Data Conversion
Less scrolling. More passing.
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Hand-picked video lessons
17 short lessons, each with the best YouTube explanation we could find, trimmed to the part that matters.
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Study notes
15 lessons come with a summary, key points, key terms and takeaways for quick revision.
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Quizzes
75 questions across the course, with the right answer and why, the moment you pick.
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Assignments
1 subject assignments with clear tasks, so you practise what each subject actually asks of you.
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Notebook
Write notes beside the video, stamped with the exact time, and jump back to that moment later.
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Progress that follows you
Completed lessons, quiz scores and where you stopped, saved to your account on every device.
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Live chat
A members-only live chat beside every lesson: doubts, tips, stickers and GIFs with your batch. One ₹19 pass opens every live chat.
The Online BCA live chat. Study together, live.
A live chat right beside the video, shared by everyone studying Online BCA. Ask a Digital Electronics doubt mid-lesson, share a shortcut, celebrate a finished semester.
- Live chat beside every lesson
- One live chat for all of Online BCA
- Members-only stickers & GIFs
- One ₹19 pass opens every live chat
Online BCA live chat
Anyone else finding Digital Electronics tricky? 😅
Lesson 2 cleared it up for me. Watch it before the quiz

Doing it now, thanks!
Starting Basic Mathematics tonight if anyone wants to go together
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Digital Electronics: common questions
This subject covers number systems, logic gates, Boolean algebra, Karnaugh maps, combinational and sequential circuits such as adders, multiplexers, flip-flops, counters and shift registers, along with memory types and digital-analog conversion. After it you will be able to convert between number bases, simplify logic expressions, design and analyse combinational and sequential circuits, and explain how DACs and ADCs work. It's the Digital Electronics subject of Online BCA, Semester 1, in 17 lessons: Number Systems and Base Conversion; Logic Gates and Truth Tables; Boolean Algebra and De Morgan's Theorems; SOP, POS, Minterms and Maxterms; Karnaugh Maps with Don't Care Conditions; Multiplexers, Decoders and Encoders; Half Adder and Full Adder; Half and Full Subtractor, Negative Numbers; RS Latch and Clocked RS Flip-Flop; JK, Master-Slave, D and T Flip-Flops; Asynchronous Ripple Counters; Synchronous Counter Design; Shift Registers, Ring and Johnson Counters; RAM and ROM Types; Secondary Storage: Floppy, Hard Disk, CD-ROM; Binary Weighted Resistor DAC; Successive Approximation ADC.
Yes. Every video lesson is free to watch without an account. A free login unlocks study notes, quizzes, the assignment, a notebook and progress that syncs across devices.
About 4h 57m of video across 17 lessons, plus time for notes and quizzes. Go at your own pace; your place is saved.
Yes: “Digital Electronics Problem Set: From Number Systems to Data Conversion”. It comes after the last lesson, with a brief, clear tasks and how the work is judged.
A members-only live chat beside the video, shared by everyone studying Online BCA, where learners ask doubts, share tips and react with stickers and GIFs. One ₹19 pass, paid once from your InsideEdge wallet, opens the live chat for every degree.
No. It's a crash course to help you understand and revise the subject quickly. Use it alongside your official study material and assignments.