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Konkrete Maschinen

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@igorwhiletrue

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Disclaimer

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Computers!!! How do they work?

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Quantum Electrodynamics

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• A photon goes from one place and time to another place and time. • An electron goes from one place and time to another place and time. • An electron emits or absorbs a photon at a certain place and time.

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Particle-wave duality

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Basic Quantum Physics

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Atoms

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Molecules

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Conductivity

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• Metals • Gold • Lose all the electrons

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Circuits

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Logic Gates

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AND OR

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AND OR NOR

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NAND

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Transistors

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(it’s a switch controlled by current)

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Silicon is a semiconductor

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Binary Adder

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XNOR NAND

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XOR XOR AND OR NOR

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Flip-Flops

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Memory

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Shitloads of flip-flops

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16GB = 64 billion transistors

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Clock

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Crystal oscillator

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Frequency divider

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Addressing

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Bus

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Control

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Store instructions in memory

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Use a clock to drive an increment thing

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That indexes into memory to fetch instructions

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Decoder on the instructions

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Then address either an adder or whatever

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It’s a CPU!

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Modern CPU has 5 billion transistors

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Transistor size 28 nm

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~84 atoms across WHEEEEEEE

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Data encoding

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UTF-8

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Operating System

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Assembly

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Go talk to Nicolas about that

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Integrated Circuit

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That’s how computers work.

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Questions?