Notes with worthy tutorials
For a CPU to perform at its maximum potential, it needs rapid and continuous access to memory. However, high-speed memory is costly, which necessitates the use of various levels of memory that balance performance and cost. Here’s an overview of the different types of memories in a computer system and their organization in a multilevel memory hierarchy.
Code segment (CS) is a 16-bit register containing address of 64 KB segment with processor instructions. The processor uses CS segment for all accesses to instructions referenced by instruction pointer (IP) register. CS register cannot be changed directly. The CS register is automatically updated during far jump, far call and far return instructions.