Computer architecture is the fundamental discipline concerned with the design, organization, and implementation of computer systems. It investigates the principles and methods for structuring hardware components and their interactions to achieve desired performance, efficiency, and functionality. This field encompasses defining the instruction set architecture (ISA), the microarchitecture, and the system-level design, considering key metrics such as performance, power consumption, cost, and reliability. Its significance lies in enabling the creation of efficient, powerful, and specialized computing hardware that underpins technological advancement.