Zusammenfassung der Ressource
marcel very cool computer science
revision
- Topic 3
- Hardware
- CPU
- von Neumann
architecture
- Control Unit
- Decodes instructions received from
memory and coordinates the executions
of the other components.
- ALU
- Arithmetic Logic Unit: performs
arithmetic and logic operations on data.
- Buses
- Address Bus: carries address of the location
of the memory. Unidirectional.
- Data Bus: carries data between CPU
and memory. Bidirectional.
- Control Bus: carries command signals from control
unit to other components. Bidirectional.
- Registers
- Provide fast, temporary storage for
instructions and data.
- Clock
- Sends electronic signals at intervals to
components to synchronise all actions.
- Fetch-decode-execute cycle
- Embedded systems
- Storage
- Software
- Programming
languages
- Translators
- Compiler
- All code translated prior
to being executed
- Interpreter
- Each line of code
translated one at a time
- Because the source code is translated
line by line while execution is underway,
so the program runs more slowly