1.1-Systems Architecture

1.1-Systems Architecture

1. Computer systems take data (input), process it and then output it.

2. Embedded systems are computers built in to other devices like washing machines. They are dedicated to a single task so they are efficient

3. Clock speed: the number of instructions a processor can carry out per/second. Higher clockspeed = faster CPU

4. Number of Cores: The more cores a CPU has the more instructions it can carry out at once(multitasking).

5. Cache size: A larger cache gives the CPU faster access to more data

6. The CPU uses the Fetch-Decode-Execute Cycle.

7. The CPU fetches instruction from the RAM (copies memory address to MAR, copies instruction to MDR & adds 1 to PC.