September 22, 2026
1.1 Number Systems (Binary, Hex & 2’s Complement)
Core Cambridge 2210 Syllabus Concept Computers process instructions using binary signals (0s and 1s). In this subtopic, students master denary to binary/hexadecimal conversions, binary addition with overflow detection, logical shifts, and two’s complement representation for negative integers. Two’s Complement: Flip all bits (one’s complement) and add 1. Enables signed arithmetic in binary registers. Hexadecimal: Base-16 […]