McGraw-Hill Technology Education © 2006 by the McGraw-Hill Companies, Inc. All rights reserved. 11 CHAPTER INFORMATION TECHNOLOGY, THE INTERNET, AND YOU

CE06_PP01-2 Competencies (Page 1 of 2) Explain the five parts of an information system. Distinguish between system and application software. Distinguish between basic and specialized application software. Identify the four types of computers and microcomputers. Page 2

CE06_PP01-3 Competencies (Page 2 of 2) Describe the different types of hardware. Define data and describe files. Explain connectivity, the wireless revolution, and the Internet. Page 2

CE06_PP01-4 Five Parts of an Information System 1. People 2. Procedures 3. Software 4. Hardware 5. Data Page 4

CE06_PP01-5 People Most important part of any system Contact is … Direct Indirect Computer uses Business & Entertainment Education & Medicine Page 6

CE06_PP01-6 Software Programs Two major kinds of software System Software Application Software Page 9

CE06_PP01-7 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 Return Page 9

CE06_PP01-8 “End-user” software Two major categories General purpose Special purpose Application Software Return Page 9

CE06_PP01-9 Hardware Equipment that processes the data Controlled by software Physical devices Keyboard Mouse Monitor Other devices Page 11

CE06_PP01-10 Types of Computers Supercomputers Mainframe computers Minicomputers Microcomputers Page 11

CE06_PP01-11 Most powerful computer (very high processing speed) Have high capacity (storage) Used by very large organizations like NASA Tracking space Tracking weather Return Supercomputers Page 11

CE06_PP01-12 Mainframe Computers Capable of great processing speeds and storage capacity Not as powerful as supercomputers Occupies specially wired, air-conditioned rooms Used for business applications such as insurance companies that process thousands of policy holder billing statements Return Page 11

CE06_PP01-13 Minicomputers Also known as midrange computers (size of a desk) Used by medium-sized companies Used by departments of large companies Return Page 11

CE06_PP01-14 Microcomputers Least powerful (less speed) Most widely used Four types of Microcomputers Desktop Notebook or laptop Tablet PC Handheld Return Page 11 Desktop Notebook Tablet PC Handheld

CE06_PP01-15 Desktop Computers small enough to fit on top of or alongside a desk too big to carry around Return Page 11

CE06_PP01-16 Notebook or Laptop Computers Notebook, also known as laptop computers, are portable, lightweight, and fit into most briefcases Return Page 11

CE06_PP01-17 Tablet PC Is a type of notebook computer that accepts your handwriting. This input is digitized and converted to standard text that can be further processed by programs such as a word processor. Return Page 11

CE06_PP01-18 Handheld Are the smallest and are also known as palm computers. These systems typically combine pen input, writing recognition, personal organizational tools, and communications capabilities. Return Page 11

CE06_PP01-19 Microcomputer Hardware System unit Input/output devices Secondary storage Communications Page 11

CE06_PP01-20 Data Raw, unprocessed facts including text, numbers, images, and sounds Processing creates information Stored electronically in files Document files Worksheet files Database files Presentation files  Presentation  Database  Worksheet  Document Page 15

CE06_PP01-21 Document Files Created by word processors to save documents such as memos, term papers, and letters Return Page 15

CE06_PP01-22 Worksheet Files Created by electronic spreadsheets to analyze things like budgets and to predict sales Return Page 15

CE06_PP01-23 Database Files Typically created by database management programs to contain highly structured and organized data Return Page 15

CE06_PP01-24 Presentation Files Created by presentation graphics programs to save presentation materials. For example, a file might contain audience handouts, speaker notes, and electronic slides. Return Page 15

CE06_PP01-25 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 Page 16

CE06_PP01-26 Knowledge Foundation Being Computer Competent means using and understanding Information Technology (IT) Page 17

CE06_PP01-27 Some Important IT Developments The Internet & the Web Powerful software & hardware Privacy & security Organizations Changing Times Page 17

CE06_PP01-28 Discussion Questions (Page 1 of 2) Explain the five parts of an information system. What part do people play in this system? What is system software? What kinds of programs are included in system software? Define and compare basic and specialized application software. Describe some different types of basic applications. Describe some types of specialized applications. Page 24

CE06_PP01-29 Describe the different types of computers. What is the most common type? What are the types of microcomputers? What is connectivity? How are the wireless revolution and connectivity related? What is a computer network? What is the Internet? What is the Web? Page 24 Discussion Questions (Page 2 of 2)