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| Definition | : | Instruction Set Architecture |
| Category | : | Computing » General Computing |
| Country/ Region |
: | Worldwide
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Initialism
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Instruction Set Architecture (ISA) is a set of rules and commands that define the interface between software and hardware in a computer system. It acts as a kind of translator between software and hardware. The software communicates with the Central Processing Unit (CPU) using instructions based on the ISA, and the CPU fetches, decodes, and executes those instructions.
ISA can vary significantly between different types of processors, such as x86, ARM, and PowerPC. Each ISA has its own set of instructions and architectural features optimized for specific types of applications, performance requirements, and design goals.
The full form of ISA is Instruction Set Architecture
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