Comparative Study of Various Micro-computer Architectures

In this paper we have discuss comparison between five most widely-used Reduced Instruction Set Architecture (RISC) processors- MIPS, ARM, SPARC, ALPHA, PA-RISC. In order for the reader to acknowledge the differences between those five architectures and fully understand the significance of each one, a comparison between the three architectures is very important MIPS, ARM, SPARC, ALPHA, PA-RISC are used in many different applications, this paper provides a comparison to be able to cover as many software and hardware applications used by these three architectures as possible. After reading this paper, the reader would have had enough information on the three RISC processors, the differences between them, and where they are most effectively used. This in turn will help in determining which ISA of the selected five is most suitable for the reader’s required application. Keywords- MIPS, ARM, SPARC, ALPHA, PA-RISC Registers.