What is micro-architecture?

Microarchitecture, also known as computer organization, is the low-level design of a microprocessor. It defines how the instruction set architecture (ISA) is implemented in a particular processor. This includes elements like the number of ALUs, cache size, pipelining techniques, and branch prediction mechanisms. Essentially, it's the blueprint for how the processor executes instructions at a hardware level. Different microarchitectures can implement the same ISA, leading to variations in performance, power consumption, and cost.