1. Chapter 1 Introduction

2.   In this chapter we will learn about structure and function of computer and possibly nature and characteristics of computer. At the end of this chapter you be able to understand:  What is computer  What is organization and architecture of computer  Structure and function of computer  Understand inside of CPU,ALU,REGISTERS. Objectives of todays lecture

3.  Computer: Computer A computer is a device that accepts Information (in the form of digitalized data) and manipulates it for some result based on a program or sequence of instructions on how the data is to be processed. Complex computers also include the means for storing data (including the program, which is also a form of data) for some necessary duration

4.   Architecture is those attributes visible to the programmer  Instruction set, number of bits used for data representation, I/O mechanisms, addressing techniques.  e.g. Is there a multiply instruction?  Organization is how features are implemented  Control signals, interfaces, memory technology.  e.g. Is there a hardware multiply unit or is it done by repeated addition? Architecture & Organization

5.   All Intel x86 family share the same basic architecture  The IBM System/370 family share the same basic architecture  This gives code compatibility  At least backwards  Organization differs between different versions Architecture & Organization 2

6.   Structure is the way in which components relate to each other  Function is the operation of individual components as part of the structure Structure & Function

7.   All computer functions are:  Data processing  Data storage  Data movement  Control Function

8.  Functional View

9.  Operations (a) Data movement

10.  Operations (b) Storage

11.  Operation (c) Processing from/to storage

12.  Operation (d) Processing from storage to I/O

13.  Structure - Top Level Computer Main Memory Input Output Systems Interconnection Peripherals Communication lines Central Processing Unit Computer

14.  Structure - The CPU Computer Arithmetic and Login Unit Control Unit Internal CPU Interconnection Registers CPU I/O Memory System Bus CPU

15.  Structure - The Control Unit CPU Control Memory Control Unit Registers and Decoders Sequencing Login Control Unit ALU Registers Internal Bus Control Unit

16.   Computer Evolution and Performance  Computer Interconnection Structures  Internal Memory  External Memory  Input/Output  Operating Systems Support  Computer Arithmetic  Instruction Sets Outline of the Book (1)

17.   CPU Structure and Function  Reduced Instruction Set Computers  Superscalar Processors  Control Unit Operation  Microprogrammed Control  Multiprocessors and Vector Processing  Digital Logic (Appendix) Outline of the Book (2)

18.   http://WilliamStallings.com/COA/COA7e.html  links to sites of interest  links to sites for courses that use the book  errata list for book  information on other books by W. Stallings  http://WilliamStallings.com/StudentSupport.html http://WilliamStallings.com/StudentSupport.html  Math  How-to  Research resources  Misc Internet Resources - Web site for book

19.   WWW Computer Architecture Home Page  CPU Info Center  Processor Emporium  ACM Special Interest Group on Computer Architecture  IEEE Technical Committee on Computer Architecture  Intel Technology Journal  Manufacturer’s sites  Intel, IBM, etc. Internet Resources - Web sites to look for

20.   comp.arch  comp.arch.arithmetic  comp.arch.storage  comp.parallel Internet Resources - Usenet News Groups

21. Video lectures of computer organization and architecture https://youtu.be/vDxyrEvKPa4?li st=PL6tk8xkG6ZQfFjCZhFFuG HpKqfxHAy8sw https://youtu.be/UX64uR63jys https://youtu.be/K_21dNxKC4o https://youtu.be/VxZh5NuotNo

22. Thank you