Groups of flip-flops acting as ultra-fast, temporary storage spots inside the CPU.
Unlike combinational circuits, sequential circuits have "memory." Their output depends on both the current inputs and the previous history of the circuit.
+-------------------------------------------------------+ | Processor | | | | +------------------------+ +--------------------+ | | | Arithmetic Logic Unit | | Control Unit | | | | (ALU) | | (CU) | | | +------------------------+ +--------------------+ | | | | +------------------------+ | | | Registers | | | | (PC, IR, Accumulator) | | | +------------------------+ | +-------------------------------------------------------+ The Arithmetic Logic Unit (ALU) logic gates circuits processors compilers and computers pdf
Common in smartphones and modern laptops (Apple Silicon, Qualcomm). Optimized for power efficiency.
: Reverses the input signal ( 1 becomes 0 , and vice versa). Universal Gates Groups of flip-flops acting as ultra-fast, temporary storage
Practical note: good abstraction boundaries let teams work in parallel — one engineer refines logic, another verifies timing, another handles physical layout.
A complete computer system connects the processor to memory and input/output devices. The interaction between hardware (circuits/processors) and software (compilers) follows a graduated approach: Optimized for power efficiency
Compilers are used to translate software into a form that a processor can execute.
Ultra-fast, internal storage cells used to hold immediate data, instructions, and memory addresses currently being processed. Examples include the Program Counter (PC) and the Accumulator.
A compiler takes human-readable source code and transforms it step-by-step into processor-readable machine code. This pipeline happens in several distinct phases: