Computer Science
From bits to algorithms — the core of how computing works.
2,872 lessons·First 10 free
- 1What is Binary and Why It MattersFree
- 2Counting in BinaryFree
- 3Converting Binary to DecimalFree
- 4Converting Decimal to BinaryFree
- 5Binary AdditionFree
- 6Binary SubtractionFree
- 7Hexadecimal Number SystemFree
- 8Converting Between Binary and HexadecimalFree
- 9Octal Number SystemFree
- 10Signed Integer RepresentationFree
- 11Two's Complement ArithmeticPro
- 12Fixed-Point and Floating-Point BasicsPro
- 13Boolean Values and Truth TablesPro
- 14The NOT Gate (Inverter)Pro
- 15The AND GatePro
- 16The OR GatePro
- 17The XOR Gate (Exclusive OR)Pro
- 18NAND and NOR GatesPro
- 19Boolean Expressions and LawsPro
- 20De Morgan's LawsPro
- 21Building Complex Circuits from Basic GatesPro
- 22Simplifying Boolean ExpressionsPro
- 23What is Character Encoding?Pro
- 24ASCII: The FoundationPro
- 25Extended ASCII and Code PagesPro
- 26Unicode: Universal Character SetPro
- 27UTF-8 EncodingPro
- 28UTF-16 and UTF-32Pro
- 29Byte Order Marks and EndiannessPro
- 30Common Encoding IssuesPro