Computer Architecture refers to the organization and design of the hardware components of a computer system. It is a blueprint that describes how software and hardware technologies interact to form a computer system or platform. Essentially, it dictates the computer’s system performance, and it is deeply intertwined with programming efficiency. The field encompasses several core areas, including instruction set architecture, microarchitecture, and system design. Studying computer architecture helps us understand the system's functionality, organization, and performance to design efficient systems and optimize their performance.