Section outline

  • This chapter presents the fundamental concepts, structure, and operation of processors, which are the core components of embedded and computing systems .

    It explains the role and importance of the processor, detailing how it executes instructions through the instruction cycle (fetch, decode, execute) and coordinates all system components.

    The chapter describes the internal architecture of a processor, including key units such as:

    • the Control Unit (CU),
    • the Arithmetic and Logic Unit (ALU),
    • and registers,
      as well as their interaction in data processing.

    It also introduces the digital logic foundations (logic gates, adders, multiplexers, flip-flops, and counters) that enable processor operations.

    Furthermore, the chapter explores modern processor architectures and technologies, including:

    • single-core and multi-core processors,
    • RISC vs CISC architectures,
    • performance optimization techniques such as pipelining, parallelism, and cache memory.

    Finally, it presents different types of processors according to application domains (embedded systems, IoT, smartphones, high-performance computing, and AI), along with criteria for selecting and integrating processors into real-world projects.