Computer Science 2208A/B Lecture Notes - Lecture 1: Distributed Memory, Instruction Set, Computer Architecture
2 Feb 2018
School
Department
Course
Professor
Document Summary
A computer is characterized by its instruction set architecture. Abstract entity because it does not consider specific design or implementation of a computer. Computer"s register set, instruction set, and addressing modes. Defines the model of a computer form the programmer point of view. Traditional sequential computer model (von neumann model) Parallel computer model (shared memory, distributed memory with passing or both) Organization is concerned with the implementation of an isa. Any given isa can have many different organizations. Computer manufacturers regularly modify the organization of a processor while keeping its isa constant. Microarchitecture = organization (how to build architecture) Architecture tells you what a computer does. Organization tells you how to it does it. Cpu : central processing unit; reads instructions and executes them. Microprocessor usually include cache memory on-chip (high- speed) Bus : moves information around the computer between different functional units (data highway) Register : memory that holds a single unit data.
