Final Revision
Exam-Ready Revision Suite
Everything you need for the last 24 hours before the exam — formulas, patterns, and a battle-tested study plan.
📋5 Unit Sheets
📐30+ Formulas
🔁14 Patterns
🎯20 Q Predictions
📅10-Hour Plan
Compact, exam-ready notes for each unit. Open → scan → close → repeat.
- 1Binary ↔ Decimal: positional weights (2⁰, 2¹, 2²…)
- 2Octal: group 3 bits from LSB. Hex: group 4 bits.
- 31's complement: flip all bits.
- 42's complement: flip + add 1. Subtraction = add 2's comp.
- 5Carry out = positive. No carry = negative (re-complement).
- 6IEEE 754 single: 1+8+23, bias=127. Double: 1+11+52, bias=1023.
- 7BCD: each decimal digit → 4 bits (max 1001).
- 8Gray code: Gᵢ = Bᵢ₊₁ ⊕ Bᵢ, G_MSB = B_MSB.