1. Tonga Institute of Higher Education IT 245 Management Information Systems Lecture 1

2. General Information IT 245: 4 Hours of lectures every week IS1 Tue & Thur 2 – 4 IS2 Mon & Wed 2 – 4

3. General Information Course Web Page Course Web Page is under construction. Will be up and run shortly

4. Grading Grading Policy –Tests 20% –Assignments & Quizzes 15% –Project 15% –Final Exam 50% Class Participation/Attendance contribute to the final mark when marks are on the border line. Late homework policy - No late assignments are accepted!

5. Tests, Assignments & Quizzes and Projects Tests – There will be 2 tests as it’s shows on the course outline. Homework - will be assigned every week, and is to be turned in the following week. This is mainly written homework and is to be done separately. Quizzes – Quizzes will be once a week. They will be short and last no more than 10 minutes One long-term project – Details will be given as soon as the first chapter is covered Final Exam -There is one final

6. Topic to be covered! As given on the course outlines –Foundations of Information Systems in Business –Competing with Information Technology –Computer Hardware & Computer Software –Data Resource Management –Telecommunications and Networks –The Internetworked E-Business Enterprise –Electronic Business Systems & Electronic Commerce Systems –E-Business Decision Support –Developing E-Business Strategies –Developing E-Business Solutions –Security and Ethical Challenges of E-Business –Enterprise and Global Management of E-Business Technology

7. Why learn this stuff? As students of information technology it is very important to be familiar with the management of concepts and practice of Information System. You have learned things about Information technology and you should also understand how to manage those things.

8. What will this course do? By the end of this course, you will be familiar with the management of concepts and practice of Information systems.

9. Computer History Let start our journey for 245 with some Basic Principle – History – Basic Principle

10. History of Computers Instructing an electronic device (Computer) to perform some task of yours, you need to have some understanding of these two things : -the history -the components and how they coordinate with each other.

11. History of Computers Many discoveries and inventions have directly and indirectly contributed to the development of the personal computer (PC) The first computer of any kind were simple calculators. Even these evolved from mechanical devices to electronic digital devices.

12. Timeline Timeline of some significant events in computer history.

13. 1617 1617John Napier creates “Napia’s Bones” wooden or ivory rods used for calculating. John Napier (1550–April 4, 1617) was a Scottish mathematician and astrologer. He is most remembered as the inventor of natural logarithms, of Napier's bones or Napier's rods and for popularizing the decimal point. He was born in Merchiston Tower, Edinburgh. Although he did not invent the natural logarithm function, it is sometimes known as the Napierian Logarithm.1550April 41617 Scottishmathematicianastrologernatural logarithmsNapier's bones or Napier's rods decimal pointEdinburgh function

14. 1642 1642 Blaise Pascal introduces the Pascaline digital adding machine. Blaise Pascal (June 19, 1623 – August 19, 1662) was a French mathematician, physicist, and religious philosopher. Important contributions by Pascal to the natural and applied sciences include the construction of mechanical calculators, the study of fluids, and clarification of concepts such as pressure and vacuum. Pascal also did groundwork in projective geometry and in probability theory, which has major ramifications in economics and the social sciences.June 191623August 191662 Frenchmathematicianphysicistreligiousphilosophercalculatorsfluids pressurevacuum projective geometryprobability theoryeconomicssocial sciences Most of these contributions were made early in his life, as following a mystical experience in 1654, he fell away from mathematics and physics and devoted himself to reflection and writing about philosophy and theology. This period was characterized by the composition of his two most famous works, the Lettres provinciales and the Pensées. Pascal suffered from ill-health throughout his life and died two months after his 39th birthday.mystical1654theologyLettres provincialesPensées

15. 1822 Charles Babbage conceives the Difference Engine and later the Analytical Engine, a electronic computers Charles Babbage (December 26, 1791 – October 18, 1871) was an English mathematician, analytical philosopher and (proto-) computer scientist who originated the idea of a programmable computer. Parts of his uncompleted mechanisms are on display in the London Science Museum. In 1991, working from Babbage's original plans, a difference engine was completed, and functioned perfectly. It was built to tolerances achievable in the 19th century, indicating that Babbage's machine would have worked.December 261791 October 181871English mathematiciancomputer scientistcomputer London Science Museum1991difference engine19th century Born December 26, 1791 in Teignmouth, Devonshire UK, Died 1871, London; Known to some as the "Father of Computing" for his contributions to the basic design of the computer through his Analytical machine. His previous Difference Engine was a special purpose device intended for the production of tables.

16. 1906 Le De Forest patents the vacuum tube triode, used as an electronic switch in the first electronic computers Lee De Forest, (August 26, 1873 - June 30, 1961), was an American inventor with over 300 patents to his name. De Forest invented the Audion, a vacuum tube that takes relatively weak electrical signals and amplifies them. De Forest is one of the fathers of the "electronic age," as the Audion helped to usher in the widespread use of electronics.August 261873June 301961AmericaninventorAudionvacuum tubeelectrical electronics He was involved in several patent lawsuits (and he spent a fortune from his inventions on legal bills). He had four marriages, several failed companies, was defrauded by business partners, and was once indicted for mail fraud and later acquitted.inventions

17. 1945 John von Neumann writes “First Draft of a report on the EDVAC(Electronic Discrete Variable Automatic Computer)” in which he outlines the architecture of the modern stored-program computer. John von Neumann (Neumann János) (December 28, 1903 – February 8, 1957) was a Hungarian-American-German-Jewish mathematician who made important contributions in quantum physics, functional analysis, set theory, computer science, economics and many other mathematical fields.December 281903February 81957 mathematicianquantum physicsfunctional analysisset theorycomputer scienceeconomics The EDVAC is the successor of the ENIAC. Made by the same designers: Mauchly and Eckert.

18. 1946 The ENIAC (Electronic Numerical Integrator And Computer) was one of the worlds first computer. - large stand-alone machine -Used large amounts of electricity -Contained miles of wires and thousands of vacuum tubes -Considered immensely useful when compared to hand-operated calculators 1946 ENIAC is introduced, an electronic computing machine build by John Mauchly and Presper Eckert

19. 1940’s Cont’ 1947 On December 23, William Shockley, Walter Brattain, and JohnBardeen successfully test the point-contact transistor, setting off the semiconductor revolution. 1949 Maurice Wilkes assembles the EDSAC, the first practical stored-program computer at Cambridge University.

20. 1950’s IBM sold its first business computer. - Computational power was equivalent to 1/800 of a typical 800-megahert Pentium computer sold in 2000 - perform one task at a time - Typical input and output devices were punch cards and paper tape

21. Research Work !!! Use the internet to find what development that happen to electronic digital devices in the following years. –1950 –1952 –1953 –1954 –1955 –1956 –1958 –1959

22. 1960’s Expensive time-sharing computers became popular in large organizations that could afford them –30 people could work on one computer simultaneously –Input occurs via teletype machine –Output is printed on a roll of paper –Could be connected to the telephone

23. Research Work !!! Use the internet to find what development that happen to electronic digital devices in the following years. –1960 –1961 –1964 –1965 –1966

24. 1970’s The advantage of computer networks was realized –Email and files transfer were born

25. Research Work !!! Use the internet to find what development that happen to electronic digital devices in the following years. –1970 –1971 –1972 –1973 –1974 –1975 –1976 –1977 –1978 –1979

26. 1980’s PC’s became available in large numbers. –Networks of interconnected PC’s became popular (LANs) TCP-IP –Organizations utilized resource and file sharing

27. Research Work !!! Use the internet to find what development that happen to electronic digital devices in the following years. –1980 –1981 –1983 –1984 –1985 –1986 –1987 –1988 –1989

28. 1990’s An explosion of computer use occurs. –Hundreds of millions of computers are being used in business and homes –Most computer are now connected to the internet –Java is quickly becoming the common language of today’s computer.

29. Research Work !!! Use the internet to find what development that happen to electronic digital devices in the following years. –1990 –1991 –1993 –1994 –1995 –1986 –1997 –1998 –1999

30. Research Work !!! From 2000 to 2006, there are lots of different development in the digital electronic devices. Use the internet or any other media to identify at least 3 from each year.

31. Home Work 1 There are some proposed research work given so far. Find some important development that happen to electronic digital devices in the following years 1950’s, 1960’s, 1970’s, 1980’s, 1990’s, 2000’s In homework 1, you are suppose to hand in 2 important development on 1950’s to 1990’s. You suppose to hand

32. Basic Revision

33. How old is the word Computer? From our previous Discussion. The idea of digital electronics starts since 1617 Has been part of the English language since 1646 1940 dictionary define computer as a person who perform calculation Modern definition emerged 1940’s when the first electronic computing device was developed by Von Neumann

34. What is a Computer? Before the existence of what we now know as a computer – the term computer was define as a person who computes or performs calculation.

35. What is a Computer? Von Neumann define computer as a device (machine or piece of equipment) that accepts data as input, process data, store data and produce output. Data as Input Processing Device Output Store Process

36. What is a computer? Data is input by the INPUT Devices e.g.Keyboard, Scanner etc Data is process by the PROCESS Devices CPU Central Processing Unit Data is output by the OUTPUT Devices Monitor, Printer etc Data is stored by the STORAGE Devices Hard Disk, Foppy Disk etc

37. Computer and Computer Components Computer Hardware System Software Application Software Programming Software A device that accept inputs, process data, stores data and produce output Physical Components of the Computer System (CPU, Monitor, Printer, Keyboard etc) Instructions that prepare a computer to do a task, indicate how to interact with a user, and specify how to process data. All Operating Systems (Win 95, 98, 2000, XP’s, Mac OS All Programs that interact with the user (MSWord, Excell, PowerPoint etc) For Developers Use (C, C++, Java VB etc) Software

38. Human - Computer Interactions User Application Software System Software Hardware TIHE Students MS Word, Excel, Database etc. All System Software (OS) Window 95, 98, 2000, XP, Mac OS Physical Parts of the Computer

39. Drive & Driver Drive – Drive Pays Areas with in a Computer system unit that can accommodate additional storage device. Driver – Set of instructions that interact with the Hardware

40. Memories and Data Storage 1.Main Memory, Ram Temporary, Volatile, Limited, MB, GB 2.Other Memory Storage Some Temporary (Cache Memory) Some permanent (ROM), Small Capacity 3. Secondary Memories Large Capacity, Permanent, Non Volatile (Floppy Disk, Hard Disk CD’s etc)

41. What is computer Literacy? Having an understanding of what a computer is and how it can be used as a priceless resource. Refer to having knowledge and understanding – i.e. having the essential knowledge and understanding of computer technology.

42. What is computer competency? Is applying your skills with computers to meet all your information needs as well as improving your productivity Having skills

43. What is an information system? Refer to a computer system that collects, stores and processes information, usually within the context of an organization.

44. Parts of an Information system People Procedure Software Hardware Data. These parts need each other in order to be useful

45. Parts of an Information System People: The most important part of an information System Data: are the unprocessed facts Processing Data creates information. Procedure: Software: Hardware:

46. Types of Computers 1.Super Computer Fastest and most expensive computer in the world. They can cost upwards of 35 million dollars. –Used for “computer-intensive” tasks like weather prediction, molecular computing, breaking codes –Problems that requires many calculations with math formulas can be used on a supercomputer –A team of Japanese scientists used the world’s fastest computer to predict weather for the next 100 years for the entire world. –The fastest supercomputers can do 1 trillion calculations per second

47. Types of Computers 2.Mainframe : -(simply “mainframe”) -large and expensive computer that is capable of simultaneously processing data for hundreds or thousands of user -generally used by businesses or governments to provide centralized storage, processing and management for large amount of data. -remain the computer of choice in situations where reliability, data security and centralized control are necessary.

48. Types of Computers 3.Minicomputer: -appear in 1968 and describe another computer category -smaller, less expensive and less powerful than mainframes. -provide adequate computing power for small businesses.

49. Types of Computers 4.Microcomputers -appeared in 1971 - can easily differentiate from other computer category by its CPU – CPU consisted of a single “chip” called microprocessor.

50. What is a Personal Computer (PC)? Is a type of microcomputer, designed to meet the computing needs of an individual. Typically provides access to a wide variety of computing applications

51. Data & Information Is there Different between data and information? Data:the symbols that represent people, events, things and ideas -i.e. raw facts. Information: when data is presented in a format that people can understand and use. Computers store data in a digital format as a series of 1’s and 0’s. Each 1 or 0 is called a bit. Eight bits is called a byte which is used to represent one character – a letter, number or punctuation mark.

52. File & Files Computer file usually referred to simply as a file – which is a named collection of data that exists on a storage medium such as hard disk etc. A data file might contain the text for a document, the number for a calculation, specification for a graph, frames for a video etc Executable File : contains the programs or instructions that tell the computer how to perform a specific task.] Filename extension : usually referred to simply as an extension which tells what’s in a file. (.txt,.doc.exe etc)

53. Summary History Timeline Basic Info