Introduction to Computer Architecture

"This essay gives a brief introduction on Computer Architecture" BASIC COMPUTER ARCHITECTURE Address, Data, and Control Buses: A computer system comprises of a processor, memory, and I/O devices. I/O is used for interfacing with the external world, while memory is the processor's internal world. Processor is the core in this picture and is responsible for performing operations. The operation of a computer can be fairly described with processor and memory only. I/O …

…manufacturers number their registers like r0, r1, r2, others name them like A, B, C, D. Naming is useful since the registers are few in number. This is called the nomenclature of the particular architecture. Still other manufacturers name their registers according to their function like X stands for an index register. This also informs us that there are special functions of registers as well, some of which are closely associated to the particular architecture.