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James A. Senn’s Information Technology, 3rd Edition

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Presentation on theme: "James A. Senn’s Information Technology, 3rd Edition"— Presentation transcript:

1 James A. Senn’s Information Technology, 3rd Edition
Chapter 1 Information Technology: Principles, Practices, and Opportunities Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

2 Explain the three primary components of information technology.
Objectives Describe the six characteristics of the Information Age and discuss the role of information technology as the principal tool of the Information Age. Explain the three primary components of information technology. Identify the six information-handling functions and the four benefits of information technology. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

3 Objectives Summarize the principles of business reengineering, while emphasizing the potential benefits to people and business. Discuss the types of opportunities that information technology offers to people. Describe the responsibilities of people who use information technology. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

4 Welcome to the Information Age The Evolution of the Information Age
Agricultural Age: The period up to the 1800s, when the majority of workers were farmers whose lives revolved around agriculture. Industrial Age: The period from the 1800s to 1957, when work processes were simplified through mechanization and automation. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

5 Welcome to the Information Age The Evolution of the Information Age (Continued)
Information Age: The period that began in 1957, in which the majority of workers are involved in the creation, distribution, and application of information. Knowledge Workers: Workers involved in the creation, distribution, and application of information. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

6 Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall
Welcome to the Information Age The Evolution of the Information Age (Continued) Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

7 An information-based society has arisen.
Welcome to the Information Age The Characteristics of the Information Age (Continued) An information-based society has arisen. Information Society: A society in which more people work at handling information than at agriculture and manufacturing combined. Businesses depend on information technology to get their work done. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

8 Work processes are being transformed to increase productivity.
Welcome to the Information Age The Characteristics of the Information Age (Continued) Work processes are being transformed to increase productivity. Work Processes: The combination of activities that workers perform, the way they perform those activities, and the tools they use. Productivity: The relationship between the results of an activity (output) and the resources used to create those results (inputs). Effectiveness: The extent to which desirable results are achieved. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

9 Welcome to the Information Age The Characteristics of the Information Age (Continued)
Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

10 Welcome to the Information Age The Characteristics of the Information Age (Continued)
Information technology provides the means to rethink/recreate/reengineer conventional business processes. Reengineering: The reshaping of business processes to remove barriers that prohibit an organization from providing better products and services and to help the organization capitalize on its strengths. Business Processes: Collections of activities, often spanning several departments, that take one or more kinds of input and create a result that is of value to a company’s customers. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

11 Welcome to the Information Age The Characteristics of the Information Age (Continued)
Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

12 Information technology is embedded in many products and services.
Welcome to the Information Age The Characteristics of the Information Age Success in business is largely determined by the effectiveness with which information technology is used. Information technology is embedded in many products and services. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

13 Reengineering efforts to attain greater productivity:
Welcome to the Information Age The Characteristics of the Information Age (Continued) Reengineering efforts to attain greater productivity: Industrial Age - Division of Labor: Separation of work process into component task, with different workers specializing in each of the tasks. Information Age – Teamwork, Interconnection, and Shared Information. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

14 Welcome to the Information Age The Characteristics of the Information Age (Continued)
Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

15 What is Information Technology? Definition
A term used to refer to a wide variety of items and abilities used in the creation, storage, and dispersal of data and information. Its three main components are computers, communications networks, and know-how. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

16 What is Information Technology? Definition (Continued)
Data: Raw facts, figures, and details. Information: An organized, meaningful, and useful interpretation of data. Knowledge: An awareness and understanding of a set of information and how that information can be put to the best use. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

17 What is Information Technology? Definition (Continued)
Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

18 What is Information Technology? Computers
An electronic system that can be instructed to accept, process, store, and present data and information. Computers come in four sizes: Microcomputers Midrange computers Mainframes Supercomputers Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

19 What is Information Technology? Computers (Continued)
Microcomputers: A relatively compact type of computer, the most common of all, easily outsells all other types of computers annually for use in business and at home. Five types of Microcomputers: Desktop Computers Notebook Computers/Laptop Computers Tablet PCs Personal Digital Assistants Palm PCs Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

20 What is Information Technology? Computers (Continued)
Midrange computers and Mainframes: A computer uses to interconnect people and large sets of information. More powerful than a microcomputer, the minicomputer is usually dedicated to performing specific functions. Supercomputers: The most powerful of all computers, supercomputers were designed to solve problems consisting of long and difficult calculations. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

21 What is Information Technology? Computers (Continued)
Hardware: The computer and its associated equipment. Program: A set of instructions that directs a computer to perform certain tasks and produce certain results. Software: The general term for a set of instructions that controls a computer or a communications network. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

22 What is Information Technology? Computers (Continued)
System: A set of components that interact to accomplish a purpose. Information System: A business information system designed to produce the information needed for successful management of a structured problem, process, department, or business. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

23 What is Information Technology? Computers (Computers)
Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

24 What is Information Technology? Communications Networks
Communication: The sending and receiving of data and information over a communications network. Communications Network: A set of locations, or nodes, consisting of hardware, programs, and information linked together as a system that transmits and receives data and information. Data Communication: The transmission of data and information through a communications medium. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

25 What is Information Technology? Know-How
The capability to do something well. Information technology know-how consists of: Familiarity with the tools of IT; including the Internet Possession of the skills needed to use these tools An understanding of when to use IT to solve a problem or create an opportunity Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

26 Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall
The Principles of Information Technology The Functions of Information Technology Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

27 Capture: The process of compiling detailed records of activities.
The Principles of Information Technology The Functions of Information Technology (Continued) Capture: The process of compiling detailed records of activities. Processing: The process of converting, analyzing, computing, and synthesizing all forms of data or information. Data Processing Information Processing Word Processing Image Processing Voice Processing Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

28 The Principles of Information Technology The Functions of Information Technology (Continued)
Generation: The process of organizing information into a useful form, whether as numbers, text, sound, or visual image. Storage and Retrieval: Storage is the computer process of retaining information for future use. Retrieval is the process by which a computer locates and copies stored data or information for further processing or for transmission to another user. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

29 Electronic Mail, or E-Mail Voice Messaging, or Voice Mail
The Principles of Information Technology The Functions of Information Technology (Continued) Transmission: The computer process of distributing information over a communications network. Electronic Mail, or Voice Messaging, or Voice Mail Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

30 Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall
The Principles of Information Technology The Benefits of Information Technology Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

31 Helping People Solving Problems
The Principles of Information Technology The Opportunities of Information Technology Helping People Solving Problems Problem: A perceived difference between an existing condition and a desired condition. Problem Solving: The process of recognizing a problem, identifying alternatives for solving it, and successfully implementing the chosen solution. Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

32 Television Education Training Entertainment Shipping
The Principles of Information Technology Information Technology Is All Around Us, Improving Our Lives Television Education Training Entertainment Shipping Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

33 Taxation and Accounting Health and Medicine
The Principles of Information Technology Information Technology Is All Around Us, Improving Our Lives (Continued) Paperwork Money and Investments Agriculture Taxation and Accounting Health and Medicine Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

34 Manufacturing Journalism Energy Sports
The Principles of Information Technology Information Technology Is All Around Us, Improving Our Lives (Continued) Manufacturing Journalism Energy Sports Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

35 To be Informed To Make Proper Use of IT To Safeguard
The Principles of Information Technology The Responsibilities of Using Information Technology To be Informed To Make Proper Use of IT To Safeguard Senn, Information Technology, 3rd Edition © 2004 Pearson Prentice Hall

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