1. © 2004 Ken Baldauf, All rights reserved. Why Study Computers? Using Computers to Achieve Goals Careers and Computers Computers and the Internet Computer Systems Computer Systems Development, Security, and Control Please turn your cell phone off.

2. © 2004 Ken Baldauf, All rights reserved. Using Computers to Achieve Goals Some Fundamental Concepts

3. © 2004 Ken Baldauf, All rights reserved. A Computer An electronic device used to perform calculations and other digital functions at high speed. Computer activities  Input  Processing  Storage  Output How do these concepts relate to an MP3 player?

4. © 2004 Ken Baldauf, All rights reserved. Producing Valuable Information Data: raw facts Information: data organized and presented in a manner that provides value to the user.  Preferably accurate, complete, economical, flexible, reliable, relevant, simple, timely, and verifiable How do these concepts relate to

5. © 2004 Ken Baldauf, All rights reserved. Advantages of Using Computer Systems Increases in Productivity Improved Quality Competitive Advantage How do these concepts relate to

6. © 2004 Ken Baldauf, All rights reserved. Review Questions

7. © 2004 Ken Baldauf, All rights reserved. Careers and Computers A Survey of Computer Use in Careers ~Please read on your own

8. © 2004 Ken Baldauf, All rights reserved. Computer Components Hardware Software Types of Computers

9. © 2004 Ken Baldauf, All rights reserved. Hardware Hardware includes all of the tangible parts of a computer system used to input, process, store, and output data and information.

10. © 2004 Ken Baldauf, All rights reserved. Software Software consists of programs and instructions given to the computer to execute and run. Two types:  Application software serve people’s needs  System software serves the computer systems needs

11. © 2004 Ken Baldauf, All rights reserved. SINGLE USER SYSTEMS Types of General Purpose Computer Systems Personal Computers (PCs) Small, inexpensive, often called microcomputers. Workstations High-end special-purpose microcomputers Midrange Computers Size of a three drawer file cabinet and accommodates several users at one time. Mainframe Computers Large and powerful, shared by hundreds concurrently. Supercomputers Most powerful with fastest processing speeds. MULTI-USER SYSTEMS (SERVERS)

12. © 2004 Ken Baldauf, All rights reserved. Special-Purpose Computer systems Computers designed for one task. Kiosk Game consoles Digital Music Players Can you think of any others?

13. © 2004 Ken Baldauf, All rights reserved. The Processor The processor carries out program instructions to accomplish a goal. Increasing processor speeds are expanding the boundaries of our capabilities both professionally and personally. Production Sequencing Facility at DOE's Joint Genome Institute in Walnut Creek, CA Slugfest Video Game for XBox

14. © 2004 Ken Baldauf, All rights reserved. Storage Storage devices hold data permanently. Memory, or RAM, is a form of storage that holds data temporarily. Advances in storage technologies have brought advanced multimedia applications into the home, and sparked the production of numerous portable digital devices. Like a suped-up Tivo,this 1 TB digital video recorder from Sony can store 1,000 hours of television programming. The iPod from Apple stores 10,000 songs.

15. © 2004 Ken Baldauf, All rights reserved. Input and Output Devices While the keyboard and mouse remain the most common input device, new methods of inputting data, such as voice commands and stylus are making human computer interaction more natural. Interacting with your computer using a stylus will become commonplace as tablet PCs become increasingly popular.

16. © 2004 Ken Baldauf, All rights reserved. Review Questions

17. © 2004 Ken Baldauf, All rights reserved. Computer Systems Database Systems Telecommunications and Networks E-commerce & Transaction Processing Information, Decision Support Systems Artificial Intelligence

18. © 2004 Ken Baldauf, All rights reserved. Information System Components

19. © 2004 Ken Baldauf, All rights reserved. Database Systems Database: an organized collection of facts and information. Database of known Web sites associated with key words http://news.bbc.co.uk/1/hi/technology/3497395.stm

20. © 2004 Ken Baldauf, All rights reserved. Transaction Processing Systems (TPS) Transaction: an exchange of goods TPS: an information system designed to support and record completed transactions

21. © 2004 Ken Baldauf, All rights reserved. E-commerce E-commerce involves conducting business or other transactions online, over the Internet or other telecommunications system.  Business-to-business (B2B)  Business-to-consumer (B2C)  Consumer-to-consumer (C2C)

22. © 2004 Ken Baldauf, All rights reserved. Management Information Systems (MIS) MIS: an information system designed to provide routine information to managers and decision makers

23. © 2004 Ken Baldauf, All rights reserved. Decision Support Systems (DSS) DSS: An information system designed to support problem-specific decision making.

24. © 2004 Ken Baldauf, All rights reserved. Artificial Intelligence and More Artificial Intelligence: computer systems take on characteristics of human intelligence. Expert System: an information system that can make suggestions and reach conclusions in much the same way as a human expert. http://www.artificial-life.com

25. © 2004 Ken Baldauf, All rights reserved. Review Questions

26. © 2004 Ken Baldauf, All rights reserved. Computer Systems Development, Security, and Controls Please read on your own.

27. © 2004 Ken Baldauf, All rights reserved. Questions? Don’t forget to turn your phone back on!!