Number Systems | O Level Computer Science 2210 & IGCSE Computer Science 0478 | Detailed Free Notes To Score An A Star (A*) 1.0 Lesson Objectives 1.1 Basics of Computer In computer, 1 means on and 0 means off Everything must be converted to this machine language the computer understands only machine language The denary number system is where the base is 10. … Read more about Number Systems | O Level Computer Science 2210 & IGCSE Computer Science 0478 | Detailed Free Notes To Score An A Star (A*) Read More