Tag: instruction set
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Control Unit in Computer Organization and Architecture
The Control Unit (CU) is a fundamental component of the central processing unit (CPU) in computer systems. It acts as the “brain within the brain,” orchestrating the execution of instructions by directing the operation of other components such as the Arithmetic Logic Unit (ALU), registers, memory, and input/output devices. The CU does not perform actual…
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Machine Instructions in Computer Organization and Architecture
Machine instructions are the fundamental operations that a computer’s central processing unit (CPU) can execute directly. These instructions are part of a computer’s instruction set architecture (ISA), which defines the set of operations that the hardware can perform. Machine instructions serve as the lowest level of software instructions, encoded in binary format and executed by…
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Addressing Modes in Computer Organization and Architecture
Addressing modes are mechanisms that define how the operands of machine instructions are accessed. They play a crucial role in computer organization and architecture by determining how instructions interact with memory, registers, and immediate values. Understanding addressing modes is essential for optimizing code, designing efficient programs, and gaining insight into the workings of an instruction…