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11 CHAPTER INFORMATION TECHNOLOGY, THE INTERNET, AND YOU.

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Presentation on theme: "11 CHAPTER INFORMATION TECHNOLOGY, THE INTERNET, AND YOU."— Presentation transcript:

1 11 CHAPTER INFORMATION TECHNOLOGY, THE INTERNET, AND YOU

2 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-2 Competencies Explain the five parts of an information system Distinguish between application and system software Distinguish between special purpose and general purpose application software Identify the types of computers and microcomputers Describe the different types of hardware

3 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-3 Competencies cont. Define data and describe files Explain connectivity and the wireless revolution Describe the Internet and the Web

4 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-4 Five Parts of an Information System 1. People 2. Procedures 3. Software 4. Hardware 5. Data

5 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-5 People Most important part of any system Contact is … Direct Indirect Computer uses Business & Entertainment Education & Medicine

6 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-6 Software Programs Instructions Two major kinds of software System Software Application Software

7 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-7 System Software A collection of programs Enables the application software to interact with the hardware Background software that helps the computer manage its own resources

8 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-8 End-user software Two major categories General purpose Special purpose Application Software

9 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-9 Hardware Equipment that processes the data Controlled by software Physical devices Keyboard Mouse Monitor Other devices

10 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-10 Types of Computers Supercomputers Mainframe computers Minicomputers Microcomputers

11 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-11 Supercomputers High capacity Used by large organizations Tracking space Tracking weather

12 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-12 Mainframe Computers Occupies specially wired, air-conditioned rooms Capable of great processing speeds and data storage Not as powerful as supercomputers

13 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-13 Minicomputers Known as midrange computers Medium-size companies Used by departments of large companies

14 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-14 Microcomputers Least powerful Widely used Four types Desktop Notebook or laptop Tablet PC Handheld

15 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-15 Microcomputer Hardware System unit Input/output devices Secondary storage Communications

16 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-16 Data Raw, unprocessed facts Processing creates information Stored electronically in files Document files Worksheet files Database files Presentation files

17 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-17 Connectivity, the Wireless Revolution, and the Internet Connectivity Sharing of information Wireless communication is becoming popular Computer networks Connected communication system of computers Largest network is the Internet

18 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-18 A Look to the Future Computer Competent The Internet & the Web Powerful software & hardware Privacy & security Organizations Changing Times

19 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-19 Key Terms application software (9) basic application (9) chassis (12) communication device (14) compact disc (CD) (14) computer competency (3) computer network (16) Computing Essentials CD (8) connectivity (16) Data (5) database file (15) desktop computer (11) device driver (9) digital versatile disk (DVD) (14) digital video disc (DVD) (14) document file (15)

20 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-20 Key Terms end user (4) floppy disk (14) general-purpose (9) application handheld computer (11) hard disk (14) hardware (5) information (4) information system (4) information technology (IT) (5) input device (12) Internet (16) keyboard (12) laptop computer (11) mainframe computer (11) memory ( 12) microcomputer (11)

21 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-21 Key Terms microprocessor (12) midrange computer (11) minicomputer (11) modem (14) monitor (12) mouse (12) network (16) notebook computer (11) operating system (9) optical disk ( 14) output device (12) palm computer (11) people (4) personal digital assistant (PDA) (11) presentation file (15) primary storage (12) printer (12)

22 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-22 Key Terms procedures (4) program (4) random access memory (RAM) (12) secondary storage device (14) service program (9) software (4) specialized application (10) special-purpose application (10) supercomputer (11) SimNet Concepts (8) system cabinet (12) system software (9) system unit (12) tablet PC (11)

23 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-23 Key Terms temporary storage (12) utility (9) video display screen (12) Web (16) wireless revolution (16) worksheet file (15) World Wide Web (WWW) (16)

24 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-24 FAQs What is an information system? What is IT? How does raw data become information? What is an operating system? What are specialized applications? Please give some examples. Is the Internet the same as the World Wide Web?

25 © 2005 The McGraw-Hill Companies, Inc. All Rights Reserved. 1-25 Discussion Questions How are you using information technology? Explain the difference between system and application software. Describe some of the uses for handheld computers. Why is the wireless revolution so important?


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