How Do Computers Generate Truly Random Numbers?

💡 The Answer

• Traditional computers use pseudorandom number generators (PRNGs) based on mathematical formulas.
• True randomness requires physical phenomena like radioactive decay or atmospheric noise.
• Some processors include a hardware random generator that amplifies thermal noise from resistors.
• Quantum random number generators exploit photon behavior to produce unpredictable bits.
• Cryptography often combines multiple entropy sources to ensure sufficient randomness.