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IB DP Computer Science — A1 Computer fundamentals — Data representation and computer logic | SL | A1.2.1
📋 What You Will Learn
- Describe how integers are represented in binary (base 2) and hexadecimal (base 16)
- Convert binary and hexadecimal integers to decimal, and decimal to binary and hexadecimal
- Convert integers directly between binary and hexadecimal using 4-bit groups (nibbles)
- State the range of values representable with n bits
- Explain why hexadecimal is used as a compact, human-readable shorthand for binary
🔢 Why This Matters A car odometer with three digits can show 1000 different readings because each wheel carries ten symbols and each position is worth ten times the one to its right. Binary and hexadecimal work exactly the same