Computer Organization is concerned with the structure and behaviour of a computer system as seen by the user. It acts as the interface between hardware and software. It deals with the components of a connection in a system. Computer organization is concerned with how the various hardware components operate and how they are interconnected to implement the architectural specifications. ... For example, the Pentium processor implements the divide operation in hardware whereas the next generation Itanium processor implements division in software. Examples of organization attributes include those hardware details transparent to the programmer, such as control signals, interfaces between the computer and peripherals, and the memory technology used. As an example, it is an architectural design issue whether a computer will have a multiply instruction. It requires strong communication between computer scientists and computer engineers, since they both focus fundamentally on hardware design. At its most fundamental level, a computer consists of a control unit, an arithmetic logic unit (ALU), a memory unit, and input/output (I/O) controllers.

Prachi Garg

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