Syllabus Progress

Tracking the completion of the 2027 IB Computer Science notes. Last updated 18 October 2026.

SL progress: 18 of 19 subtopics finished (95%)

Only B2.4 Programming Algorithms left for SL.

HL progress: 0 of 6 subtopics finished (0%)

HL topics will be written once the SL content is complete.

Topic	Status
A1: Computer Fundamentals	FINISHED
Computer Hardware and Operation	FINISHED
Data Representation and Computer Logic	FINISHED
Operating Systems and Control Systems	FINISHED
[HL] Translation	HL, LATER
A2: Networks	FINISHED
Network Fundamentals	FINISHED
Network Architecture	FINISHED
Data Transmissions	FINISHED
Network Security	FINISHED
A3: Databases	FINISHED
Database Fundamentals	FINISHED
Database Design	FINISHED
Database Programming	FINISHED
[HL] Alternative Databases and Data Warehouses	HL, LATER
A4: Machine Learning	FINISHED
Machine Learning Fundamentals	FINISHED
[HL] Data Preprocessing	HL, LATER
[HL] Machine Learning Approaches	HL, LATER
Ethical Considerations	FINISHED
B1: Computational Thinking	FINISHED
Approaches to Computational Thinking	FINISHED
B2: Programming	IN PROGRESS
Programming Fundamentals	FINISHED
Data Structures	FINISHED
Programming Constructs	FINISHED
Programming Algorithms	NOT STARTED
File Processing	FINISHED
B3: Object-Oriented Programming	FINISHED
Fundamentals of OOP for a Single Class	FINISHED
[HL] Fundamentals of OOP for Multiple Classes	HL, LATER
B4: Abstract Data Types [HL]	HL, LATER
Fundamentals of Abstract Data Types	HL, LATER

FINISHED: notes are live. Some pages still carry a work in progress banner while they get reviewed.
IN PROGRESS: notes are being written and will go live soon.
NOT STARTED: nothing written yet.
HL, LATER: Higher Level content, planned after SL is done.

All SL content finished before the May 2027 exams. Spotted a gap or want to help write a topic? Let us know.