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Unit-1: Introduction to IAS Computer

Unit-1: Introduction to IAS Computer. Prof.M.Rajasekhara Babu School of Computing Science and Engineering mrajasekharababu@vit.ac.in. OutLine. Recap Session Objectives & Teaching Learning Material Session Plan Introduction IAS Computer Assignment References. Re-Cap.

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Unit-1: Introduction to IAS Computer

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  1. Unit-1: Introduction to IAS Computer Prof.M.RajasekharaBabu School of Computing Science and Engineering mrajasekharababu@vit.ac.in

  2. OutLine Recap SessionObjectives & Teaching Learning Material Session Plan Introduction IAS Computer Assignment References

  3. Re-Cap 1.Name the founder of the World Wide Web 2. Who developed Analytical Engine? 3. State a reason for the failure of analytical engine 4. Tell some thing about Ada Lovelace 5. In SUNMicroSystems, SUN stands for………………..

  4. Objectives & Teaching Learning Material • Session Objectives • To provide the fundamentals of system and defi. • Teaching Learning Material • LCD, White board Marker, Presentation slides

  5. Session Plan

  6. Fuel Electricity Electrical Generator Input Output Introduction System has wide variety of meanings in various contexts, but here a system is something that takes input and does some processing work and gives output. Examples: Electrical Generator Educational Institute is a system Doctor, etc., Questions: Is there any system which takes input but never produces output and Vice-versa What is a System?

  7. Data Information SYSTEM Introduction Cond., What is Data? What is Information? Example for Data Processing Systems is Computer If any system takes data as input and producing information as output, such a processing is called “Data processing system”.

  8. What is Computer ? Que’s Computer Users Dictionary: 'A machine capable of following instructions to alter data in a desirable way and to perform at least some of these operations without human intervention'. Microsoft Press Computer Dictionary, 3rd Ed.: 'any machine that does three things: accepts structured input, processes it according to prescribed rules, and produces the results as output'. Oxford dictionary: as “an automatic electronic apparatus for making calculations of controlling operations prescribed in numerical or logical terms. Collins English Dictionary: 'A device, usually electronic, that processes data according to a set of instructions'

  9. Computer Definition “A computer is a complex system incorporating diverse technologies. Typically, electronic technology is used for computation, magnetic for long-term storage, and electromechanical for input and output.”

  10. Architecture & Organization Computer architecture deals with the functional behavior of a computer system as viewed by a programmer (like the size of a data type – 32 bits to an integer). Computer organization deals with structural relationships that are not visible to the programmer (like clock frequency or the size of the physical memory).

  11. Computer Architecture & Organization

  12. Basic function of Computer • The key questions • How are these instructions supplied to the computer? • How are they interpreted and executed? answer to these questions along with the discussion on the Von-Neumann Architecture. The basic function is performed by a computer is the execution of a program is sequence of instructions which operates on data to perform certain tasks.

  13. Von Neumann Architecture All most all computer designs based on concept developed by John Von Neumann referred to as “Von Neumann architecture”. Virtually all-contemporary computers are based on concepts developed by John von Neumann who designed the IAS computer.

  14. IAS Computer Developed by John Von Neumann in 1940 at Princeton University. In IAS computer, IAS stands for Institute for Advanced Studies.

  15. Characteristics of IAS Computer • 1000 words • 40 bit word length • A sign bit and a 39-bit value represent each number. • 20-bit instruction, 8-bit operation code (opcode) 12-bit address

  16. MQ AC IAS Computer Input/output Equipments Arithmetic & Logic Circuits MBR PC IBR Main Memory IR MAR Control Circuits

  17. Summary • System, Data processing System • Definitions for Computer • Von Neumann Architecture • IAS computer • Characteristics • Block Diagram • Functionality

  18. References William Stallings “Computer Organization and architecture” Prentice Hall, 7th edition, 2006. http://americanhistory.si.edu/collections/comphist/objects/ias.htm

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