an operating system where the components are distributed across multiple nodes
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Embedded System
have a dedicated function and are part/can be part of a larger device
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Multi-tasking System
an operating system which allows multiple programs to run at the same time
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Multi-user System
an operating system which allows multiple users to be connected at the same time
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Real Time System
An operating system which can react quickly enough for an input to trigger a process being carried out.
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Open Source Software
Open source software is software with source code that anyone can inspect, modify, and enhance.
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Closed Source Software
Closed source (or proprietary software) means computer programs whose source code is not published
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Interpreter
Scans through translating line by line each time it runs.
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Compiler
Converts high level language into machine code. Makes executable machine code that can be saved and run without a compiler.
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Assembler
Translates Source code to Object code
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Lexical Analysis
All unnecessary spaces and all comments are removed. Keywords (e.g. print), constants and identifiers are replaced with tokens representing their function in the program.
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Syntax Analysis
The stream of tokens from the lexing stage is split up into phrases, each phrases is checked again the languages rules for errors.
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Code Optimisation
Remove redundant instructions Replace inefficient code with code that achieves the same result but in a more efficient way.
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Code Generation
Generates the machine code that can run the program.
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LDA
Load
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STA
Store
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ADD
Add
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SUB
Subtract
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INP
Input
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OUT
Output
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HLT
End
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BRZ
Branch if zero
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BRP
Branch if zero or positive
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BRA
Branch always
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DAT
Data location
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Other cards in this set
Card 2
Front
have a dedicated function and are part/can be part of a larger device
Back
Embedded System
Card 3
Front
an operating system which allows multiple programs to run at the same time
Back
Card 4
Front
an operating system which allows multiple users to be connected at the same time
Back
Card 5
Front
An operating system which can react quickly enough for an input to trigger a process being carried out.
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