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1.1 Systems Architecture - Coggle Diagram
1.1 Systems Architecture
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von neuman architecture
is where both the data and the software that are currently being used are stored in computer memory (ram)
With this architecture, the task a computer is working on can be changed by simply loading a different program into memory
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Every location in memory has a unique address and the CPU uses registers to keep track of where in memory the data is stored and where the programs are stored
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a computer architecture is a set of rules stating how computer software and hardware are joined together and interact to make a computer work
the cpu
the purpose of the cpu is to process data. it acts as the brain of the computer and controls the rest of the system
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cpu components
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registers
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program counter (pc)
as each instruction is processed, the software that is currently running updates the pc with the address of the next instruction to fetch. the pc then passes this next address to the memory address register as part of the standard fetch/decode/execute cycle
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internal/cache memory
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the cache acts as an intermediary between the processor and main memory (ram). as programs are executing the cache holds commonly used instructions
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embedded systems
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all the parts and components of an embedded computer are usually built on a single printed circuit board. this board is then built into the larger piece of equipment
