1.1- System Architecture

1.1- System Architecture

1. Clock Speed: Doubling the clock speed will double the number of instructions executed per second. Cores: Quadrupling the number of cores may quadruple the number of instructions executed per second. Cache Size: Increasing the cache size will reduce the number of memory to disk transfers and thus may speed up processing of these instructions

2. A computer System that is made up of both Hardware and Software Often known as Firmware Usually for very specialized tasks Doesn’t usually contain an Operating System An example: Dishwasher

3. Processors have “Cache” – This is very fast, and usually a very small amount of memory on the processor chip The Cache acts as an intermediary between the processor and the Main Memory As programs are executing – the Cache holds commonly used instructions

4. Von Neumann Architecture. MAR (Memory Address Register). MDR (Memory Data Register). Program Counter Accumulator.