Computer ScienceGrade 9

Computer Science

Learn to understand. Learn to decide. Learn to create.

3 open units, 17 topics to explore

Course details

Introduction to Computers and Their Applications
2026 to 2027 · Mr. Khan

Learn it
Choose a unit below. Open a lesson for notes, pictures and examples.
Practice it
Try the activities, then revisit an idea whenever you need it.
Homework
Homework lives inside its lesson. Follow the turn-in steps your teacher gives you.

Computer Science · Grade 9

Start here

What Makes a Computer?

Unit 1: Computer Hardware

Unit 1, Computer Hardware,You are here0 of 7 finished
Unit 2, Computer and Internet Basics,Open0 of 4 finished
Unit 3, Computer Software,Opens later
Unit 4, Algorithms and Programming with Scratch,Opens later
Unit 5, Digital Representation and File Management,Partly openMore topics later0 of 6 finished
Unit 6, Networks and the Internet,Opens later
Unit 7, Data Security,Opens later
Unit 8, The Web and E-Commerce,Opens later
Unit 9, Digital Media,Opens later
Unit 10, Data and Spreadsheets,Opens later
Unit 11, Databases,Opens later
Unit 12, The Computer Industry and Careers,Opens later

Quick practice from the current units.