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Herausforderung Datenzugriff, Von Neumann UML
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‎09_Rechnerarithmetik.md‎

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@enduml
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```
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@plantUML
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Abstrakte Darstellung
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```text @plantUML
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@startuml
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ditaa
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+-----+-----+
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| A | B |
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Daten +-----+-----+
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<--------->+cFF4 |
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| |
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Kontrolle | ALU |
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---------->+ |
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| |
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Status | |
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<----------+ |
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+-----------+
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@enduml
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```
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@plantUML
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## Herausforderung Datenzugriff
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```text @plantUML
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@startuml
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ditaa
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+------------------+
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|c44F |
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| Speicher |
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| |
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+-----------+------+
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^ |
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| |
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+----------+ Adresse | | +-----+-----+
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| +-----------+ | | A | B |
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| | | Daten +-----+-----+
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| | | <--------->+cFF4 |
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| Steuer- | | | |
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| werk | | Kontrolle | ALU |
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| | +-------------->+ |
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| | | |
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+----------+ +-----------+
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@enduml
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```
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@plantUML
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```text @plantUML
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@startuml
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ditaa
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+------------------+
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|c44F |
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| Speicher |
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| |
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+---------+-+------+
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^ | ^
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| | |
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+----------+ Adresse | | | +-----+-----+
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|cF88 +-----------+ | | | A | B |
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| | | | Daten +-----+-----+
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| | Befehl | +-------------->+cFF4 |
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| Steuer- |<------------+ | |
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| werk | Kontrolle | ALU |
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| +------------------------------>+ |
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| | | |
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| | Status | |
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| |<------------------------------+ |
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+----------+ +-----------+
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@enduml
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```
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@plantUML
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```text @plantUML
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@startuml
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ditaa
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+------------------+
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|c88F |
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| Speicher |
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| |
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+---------+-+------+
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^ | ^
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| | |
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+----------+ Adresse | | | +-----+-----+
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|cF88 +-----------+ | | | A | B |
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| | | | Daten +-----+-----+
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| | Befehl | +-------------->+cFF4 |
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| Steuer- |<------------+ | |
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| werk | Kontrolle | ALU |
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| +------------------------------>+ |
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| | | |
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| | Status | |
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| |<------------------------------+ |
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| | | |
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| | Kontrolle | |
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| +-------------+ Daten | |
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| | | +-------------->| |
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| | Status | | | |
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| |<----------+ | | | |
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+----------+ | | | +-----------+
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| | |
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| V V
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+-------+-----------+
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|c8F8 |
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| Ein/Ausgabe |
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| |
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+-------------------+
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@enduml
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```
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@plantUML
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## 1945: Von-Neumann Architektur
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```text @plantUML
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@startuml
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ditaa
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^ |
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| V
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+-+----+ +----------------------------+
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|c8F8 | |c88F Speicherwerk |
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| |<-->| +--------+ +--------+ |
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| | | |Programm| | Daten | |
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| | | +--------+ +--------+ |
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| | +------+---------------------+
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| | ^ | ^
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| E/A- | : | |
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| Werk | | V V
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| | +---+------+ +------------+
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| | |cF88 | | Rechenwerk |
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| | | | |cFF4 |
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| | | |<-=-+ +--------+ |
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| |<-=-+Steuerwerk| | |Register| |
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| | | +-=->| +--------+ |
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| | | | | | ALU | |
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| | | | | +--------+ |
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+------+ +----------+ +------------+
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@enduml
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```
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@plantUML

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