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Computer Science

Study Unit 1 through original component and logic diagrams, traceable problem-solving cases, portable C examples, formative practice, and objective-level mastery. Online completion does not certify supervised practical work or official SBA authorship.

3324 minestimated study time ENcourse language

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Unit 1

Fundamentals of Computer Science

Connect hardware and data representation to algorithmic problem-solving and safe procedural C implementation.
1

Computer Architecture

Free

Understand computer components, digital building blocks, data representation, processor execution, and evidence-based architecture choices.

450 min · 20 published activities
  1. Readiness check: Computer Architecture 12 min
  2. Input, output, and connectivity 20 min
  3. Accessible and specialised devices 20 min
  4. ROM, RAM, EPROM, and EEPROM 20 min
  5. Memory characteristics and word size 20 min
  6. Storage and access methods 22 min
  7. Power protection and system types 20 min
  8. Boolean logic and truth tables 24 min
  9. Universal and exclusive gates 24 min
  10. Adders, multiplexers, encoders, and decoders 24 min
  11. Flip-flops, registers, and counters 24 min
  12. Building-block interactions 24 min
  13. Bits, bytes, bases, and characters 24 min
  14. Signed integers and complements 24 min
  15. Floating-point representation 24 min
  16. CPU components and instructions 22 min
  17. Fetch-decode-execute cycle 22 min
  18. Cache, clock, GPU, and multi-core processing 22 min
  19. Architecture and workload decisions 22 min
  20. Computer Architecture integrated review 36 min
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2

Problem-Solving with Computers

Subscription required · from XCD 25.00 / month, all courses

Define problems, evaluate solutions, design and represent algorithms, trace control structures, and establish correctness with test evidence.

506 min · 22 published activities
  1. Readiness check: Problem-Solving with Computers 12 min
  2. Problems, solutions, algorithms, and programs 20 min
  3. Top-down, bottom-up, and refinement 22 min
  4. Hierarchy charts and decomposition 22 min
  5. Problem definition and scope 22 min
  6. Functional and non-functional requirements 22 min
  7. Candidate solutions and feasibility 22 min
  8. Selection, justification, implementation, and review 22 min
  9. Well-designed algorithms 22 min
  10. Narrative, flowchart, and pseudocode 24 min
  11. Input, output, assignment, and sequence 22 min
  12. Selection and nested decisions 24 min
  13. Bounded iteration 22 min
  14. Sentinel-controlled iteration 24 min
  15. Tracing sequences and selection 24 min
  16. Tracing loops and state 24 min
  17. Test plans and boundary data 24 min
  18. Trace tables and correctness 24 min
  19. Developing a complete algorithm 26 min
  20. Repairing an incorrect algorithm 24 min
  21. Logic before code 22 min
  22. Problem-Solving with Computers integrated review 36 min
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3

Programming

Subscription required · from XCD 25.00 / month, all courses

Use portable procedural C to implement, test, debug, document, and persist solutions while comparing language paradigms and constructs.

594 min · 25 published activities
  1. Readiness check: Programming 12 min
  2. Programming paradigms 22 min
  3. Translators and virtual machines 22 min
  4. Translation stages, preprocessor, and linker 24 min
  5. C program anatomy and build cycle 22 min
  6. Variables, types, enums, and assignment 24 min
  7. Validated input and formatted output 24 min
  8. If/else decisions 22 min
  9. Switch and multiway selection 22 min
  10. For loops and counted repetition 22 min
  11. While loops and sentinel repetition 22 min
  12. One-dimensional arrays 24 min
  13. Array update, search, and aggregation 24 min
  14. Merging and splitting arrays 24 min
  15. Character arrays and strings 24 min
  16. Functions, parameters, and return values 24 min
  17. Structured decomposition and interfaces 24 min
  18. Implementing algorithms in C 26 min
  19. Testing, errors, and debugging 26 min
  20. Records with struct 24 min
  21. Text-file read and write 26 min
  22. Append, error handling, and record files 26 min
  23. Style, comments, and documentation 24 min
  24. Language choice and concept comparison 24 min
  25. Programming integrated review 36 min
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Unit 2

Further Topics in Computer Science

Apply data structures, software-engineering discipline, operating-system concepts, networking, and database strategies.
1

Data Structures

Subscription required · from XCD 25.00 / month, all courses

Represent and implement abstract data types, searches, and elementary sorting algorithms using traceable procedural C.

408 min · 17 published activities
  1. Data Structures readiness 12 min
  2. ADT characteristics and operations 22 min
  3. Primitive, non-primitive, linear, and non-linear 24 min
  4. Stack behaviour and representation 26 min
  5. Queue behaviour and representation 22 min
  6. Circular-queue wraparound 24 min
  7. Singly linked-list insertion and deletion 26 min
  8. Push, pop, empty, and full 22 min
  9. Enqueue, dequeue, empty, and full 24 min
  10. Circular-queue operations 26 min
  11. Array-based stack implementation 22 min
  12. Array-based queue implementation 24 min
  13. Linear search 26 min
  14. Binary search and preconditions 22 min
  15. Simple selection sort 24 min
  16. Bubble sort 26 min
  17. Data Structures review 36 min
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2

Software Engineering

Subscription required · from XCD 25.00 / month, all courses

Select and apply structured software-process models, requirements, design, implementation, testing, evolution, and professional controls.

670 min · 28 published activities
  1. Software Engineering readiness 12 min
  2. Why structure software work 22 min
  3. User and management involvement 24 min
  4. Product quality attributes 26 min
  5. Quality evidence and acceptance 22 min
  6. Waterfall strengths and weaknesses 24 min
  7. Evolutionary and rapid prototyping 26 min
  8. Reuse-oriented development 22 min
  9. Agile development 24 min
  10. Fact-finding techniques 26 min
  11. Data-flow models and dictionaries 22 min
  12. Feasibility and requirements specification 24 min
  13. Architecture and system structuring 26 min
  14. Interface and report design 22 min
  15. Data-structure and algorithm design 24 min
  16. Top-down, bottom-up, functional, and object-oriented 26 min
  17. Structure charts, ERDs, and CASE support 22 min
  18. Coding and controlled implementation 24 min
  19. Test planning and test-case design 26 min
  20. Inspection, unit, and system testing 22 min
  21. Alpha, beta, and acceptance testing 24 min
  22. Black-box and white-box testing 26 min
  23. Maintenance purposes and types 22 min
  24. Change impact and regression 24 min
  25. Licensing, intellectual property, and privacy 26 min
  26. Misuse, malware, and service attacks 22 min
  27. Layered countermeasures and professional response 24 min
  28. Software Engineering review 36 min
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3

Operating Systems and Computer Networks

Subscription required · from XCD 25.00 / month, all courses

Explain operating-system resource control, design defensible networks, and use relational data and web-service strategies for large systems.

696 min · 29 published activities
  1. Operating Systems and Computer Networks readiness 12 min
  2. Resource management and interface 22 min
  3. Batch and real-time systems 24 min
  4. Interactive multiprogramming 26 min
  5. Multiprocessing and multi-user evolution 22 min
  6. Bootstrap and process states 24 min
  7. Interrupts and process-control blocks 26 min
  8. Deadlock and resolution 22 min
  9. FCFS, SJF, and round-robin scheduling 24 min
  10. Virtual memory, paging, and thrashing 26 min
  11. Files, directories, compression, and security 22 min
  12. Command, menu, and graphical interfaces 24 min
  13. Drivers, polling, buffering, and spooling 26 min
  14. Ethernet and legacy architecture comparison 22 min
  15. Star, ring, bus, and hybrid topology 24 min
  16. Modems, switches, routers, bridges, NICs, and hubs 26 min
  17. Wired and wireless media 22 min
  18. TCP/IP, FTP, HTTP, HTTPS, Wi-Fi, WiMAX, and VoIP 24 min
  19. OSI model 26 min
  20. Centralised, distributed, peer-to-peer, and multi-user 22 min
  21. Network security and firewalls 24 min
  22. Interpret network diagrams 26 min
  23. Design a simple network 22 min
  24. Flat files and relational databases 24 min
  25. Primary, secondary, foreign, and candidate keys 26 min
  26. SELECT, INSERT, UPDATE, and DELETE 22 min
  27. Inner joins and query strings 24 min
  28. Stored procedures, connections, and web services 26 min
  29. Operating Systems and Computer Networks review 36 min
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