Computer architecture can be defined as a set of rules and methods that describe the functionality, management and implementation of computers. To be precise, it is nothing but rules by which a system performs and operates.
Sub-divisions
Computer Architecture can be divided into mainly three categories, which are as follows −
Instruction set Architecture or ISA − Whenever an instruction is given to processor, its role is to read and act accordingly. It allocates memory to instructions and also acts upon memory address mode (Direct Addressing mode or Indirect Addressing mode).
Micro Architecture − It describes how a particular processor will handle and implement instructions from ISA.
System design − It includes the other entire hardware component within the system such as virtualization, multiprocessing.
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