1. Computers Are Your Future Twelfth Edition Chapter 1: Computers and You Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 1

2. Computers o Integral to our daily lives. Applications o Word processors o Internet o Online banking o Online classes o GPS systems o ATM machines o Mobile phones Mobile phones o Weather prediction Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 2 Computers: Yesterday, Today, and Tomorrow

3. Hewlett Packard 1939 Flipped a coin to see who’s last name be first Worked in a rented garage Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 3

4. Apple I 1976 Steve Wozniak designed and hand-built. Apple I was Apple's first product Steve Jobs sold his VW van to finance project. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 4

5. IBM introduced the PC–1981 Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall5

6. History of Computers 1990–2009 o World Wide Web born–1990 o Microsoft releases Windows 95–1995 o Amazon releases the Kindle - 2007 o Microsoft releases Windows 7–2009 Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 6 Computers: Yesterday, Today, and Tomorrow

7. Computer Fundamentals Computer—performs the: Information-processing cycle Consists of four basic operations: o Input o Processing o Output o Storage Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 7

8. Computer Fundamentals Computer system — group of associated components that work together o Software - programs that instruct the computer 2 Main Categories o Systems – Computer uses Ex. Operating System o Application- For user tasks Sits on top of OS Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 8

9. Computer Fundamentals Hardware o Physical parts of the computer o System unit, monitor, keyboard, and printer Motherboard o Circuit board that connects the central processing unit(s) to the other system components Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 9

10. Computer Fundamentals Input o Allows computer to accept data Typing in a document o Data Facts are raw Entered into the computer for processing Input devices o Keyboard, mouse, webcam, microphone Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 10

11. Processing o Converts data into information o Central processing unit (CPU) processes data into information. o Random access memory (RAM) temporarily stores programs and data needed by the CPU. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 11

12. Computer Fundamentals Output o Results of processing o Output devices Monitors, printers, speakers Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 12

13. Computer Fundamentals Storage o Output stored for o Storage devices Hard disks, CD, DVD, USB drives, flash memory cards, floppy disk Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 13

14. Communication device o Hardware component that moves data in and out of a computer Network o Connects two or more computers to share input/output devices and other resources through the use of a network interface card (NIC) Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 14

15. Types of Computers Two main types of computers: o Individual— for one user at a time o Organization—used by many people at the same time Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 15

16. Types of Computers Individual computers o Personal computers (PCs)—either Mac (Apple’s Macintosh) systems or IBM-compatible systems o Desktop computers—designed for home or office o Portable computers Notebooks Tablet PCs—can write on monitor with stylus Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 16

17. Types of Computers Individual computers (con’t.) o Wireless devices Netbooks —small, inexpensive notebooks designed primarily for wireless Web browsing and e-mail Smartphones —combine the capabilities of handheld computers, such as PDAs, and mobile phones Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 17

18. Types of Computers Organization computers o Servers—users connect to a computer network to have access to the network’s programs, hardware, and data o Clients—user computers connected to the network o Client/server network—use of client computers with centralized servers Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 18

19. Types of Computers Organization computers (con’d.) o Minicomputers (midrange servers)—for smaller companies o Mainframes—very large processing jobs on large companies or agencies of the government o Supercomputers—extremely high-speed processing and shows underlying patterns Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 19

20. Types of Computers Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 20

21. o Computer forensics—using computers to find and apprehend criminals o Collaborative software Google Docs—free Web-based word processor and spreadsheet Wiki—collection of Web pages designed to let anyone contribute Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 21 Computers, Society, and You

22. Web-based applications o Internet messaging (IM)—free, real-time connection o Social networks—include Facebook, MySpace, LinkedIn, and Twitter Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 22

23. Computers, Society, and You When using computer hardware: o Use surge protectors. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 23

24. Ergonomics—designing hardware to fit people better Carpal tunnel syndrome (repetitive strain injury )—repeated motions that damage nerves in hands, wrists, and arms Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 24 Computers, Society, and You

25. Sitting Properly Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall25

26. Software programs o Bug – Program error Programs run slowly or miscalculate. o The First Computer Bug Moth found trapped in an early computer 1947. Operators taped the moth to the computer log, with the entry: "First actual case of bug being found". o “Debugging a computer program“ started. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 26

27. Computers, Society, and You Computer ethics o Moral dilemmas relating to computer usage Digital piracy o Unauthorized reproduction and distribution of computer-based media Unethical behavior o Sending viruses, stealing credit card information, computer stalking, and installing illegitimate copies of software on computers Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 27

28. Computers, Society, and You E-learning o Learning without requiring students to be at a specific location at a specific time Computers - help disabled with added support and opportunities o Kinect Technology originally created for Israeli military Kinect o Offered to Apple first, but negotiations failed o Microsoft bought it Voice Activated, no controller Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 28

29. Computers, Society, and You Automation o Replacement of people by machines and computers Outsourcing o Subcontracting of portions of a job to a third party to reduce cost, time, and energy. Computer technology o Globalization has caused the outsourcing of jobs. Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 29

30. Computers, Society, and You Be a responsible computer user: o Be aware of e-waste and the proper disposal of outdated computer hardware.e-waste Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall 30