Presentation Transcript

1. Chapter 1 - Introduction This slide presentation is designed to be viewed as a Slide Show. If viewed as a Slide Show your will be able to observe the animation and you should have functional hyperlinks. When in the Slide Show view, click to advance the slide. If the presentation is working very slowly, you may want to save it to your computer and then run the show. I hope you find this presentation interesting.
2. Remember September 11, 2001 When I originally created this presentation, it was shortly after Sept. 11. When I updated my slides, I couldn’t delete these slides. I think we just have to remember! Click to advance slide
3. Terrorists - God may give you mercy, but we will not! Senator John McCain
4. COMPUTER LITERACY Knowing how to _____ a computer Knowledge and understanding of computers and how they are used in _____
5. What Is a Computer? A computeris an _____ device, operating under the control of _____ _____ in its own memory Information Processing Cycle
6. Information Processing Cycle DI _____ arechangedinto _____ (Facts) (Useful Form) Input _____ Output StorageCommunications
7. What is _____ computing? Involves reducing the _____ consumed and environmental _____ generated when using a computer Strategies include: Recycling Regulating manufacturing processes Extending the life of computers Immediately donating or properly disposing of replaced computers
8. THE COMPONENTS OF A COMPUTER Input Process Output Storage InputDevices _____ Devices System Unit contains Processing Devices _____(RAM) StorageDevices Communications Devices
9. Output Output Storage Input Input Communications Input Input Input Process Output Input
10. system unit system unit system unit system unit What is the_____ unit? Case that contains electronic components of the computer used to _____ data
11. power supply drive bays processor memory ports sound card video card modem card network card What are common components inside the system unit? Circuitry _____ _____ Adapter____ Sound card Modem card Video card Network card
12. adapter cards processor chip memory chips memory slots Expansionslots for adapter cards motherboard What is the_____ ? Main circuit board in system unit Contains adapter cards, processor chips, andmemory chips
13. What is storage? Storage holds _____ , _____ ,and informationfor future use Storage _____ Physical material on which data is stored Hard disks, CD &DVDs, flash media more Floppy disks (no more, obsolete!) Storage _____ The mechanism that retrieves & records (reads/writes) data to and from the storage media
14. Types of storage media _____ disks, _____ media, CDs & DVDs, floppy disks, others?
15. What are communication devices? Hardware that enables a computer to send & receive data _____ _____ card Transmission media Cables, telephone lines, radio networks, satellites and other? Check Webopedia for a definition
16. Why use a computer? Why is a computer so powerful? Close to the speed of light _____ Reliability Accuracy _____ Communications Low failure rate Process error free GIGO ! Garbage In Garbage Out Total & instant recall Share resources: devices & data
17. _____ Software Operating system Utility program What is Computer Software? _____ Software Computer programs A series of _____ that tells the computer _____ how to perform tasks Two general categories of software
18. Systems Software Coordinates hardware and runs application software _____ system User interface _____ user interface (GUI – icons & menus) Microsoft Windows 98, ME & 2000, XP, Windows 7 Utility programs Help manage the computer, its devices & programs Examples include: Uninstall, format disks, add printers, etc.
19. Application Software Performs specific _____ Word Processing Spreadsheet Database Presentation Graphics Many other tasks
20. How do we obtain software? The operating system is usually bundled with the computer when purchased Some applications may be bundled with the computer _____ software Custom software _____ Freeware and public-domain software
21. COMPUTER SOFTWARE Software Development Computer programmers Programming languages Visual Basic C++ _____ _____ analyst Works with users & programmers to design programs
22. What are the elements of an Information System? When System Analysts work with an information system they must consider all of the elements _____ Software _____ People _____
23. What is a Network? A collection of computers & devices Sharing connected _____ Hardware (often wireless) Software Data _____ Area Network – LAN Office & close buildings like a campus _____ Area Network – WAN Large geographic area like to U Mary Fargo
24. What is a server? A server _____ the resources on a network _____ access the resources on the server
25. What is the Internet? A worldwide collection of _____ 1969
26. What is the Web? The World Wide Web is a _____ on or a part of the Internet Connects Web _____ containing Web _____ through a means of hyperlinks 1991
27. What is the Internet/Web used for? Internet uses: _____ Accessing _____ Shopping Meeting people – social networking (Facebook) Entertainment Remember that the World Wide Web is one part/a service on the Internet Web _____ help navigate the WWW Microsoft Internet Explorer Netscape Navigator
28. What is _____ networking? A Web sitethat encourages members to sharetheir interests, ideas, stories, photos, music, and videos with other registered users
29. The_____ Computer category What are the _____ Categories of Computers? 1 includes Desktop computers Two popular architectures are: 1. PCs & 2. MACs (Apple)
30. PERSONAL COMPUTERS Can perform all of its input, processing, output, and storage activities by itself If the PC is not connected to another (host) computer It is said to be a “_____ _____ computer”
31. What is a _____ ? A very powerful PC (desktop) used for intense calculations & graphic intensive applications (graphic art , desktop publishing, multimedia, etc.) Tower Model
32. 1. Personal computers CATEGORIES OF COMPUTERS 2 _____ Computers Notebook or laptop Tablet PC Mobile_____ Smart Phones Digital cameras E-book readers Media players
33. What is a _____ PC? Useful for taking handwritten notes. Allows you to write on the screen using a digital pen
34. 3 - _____ Consoles? A mobile computer using handheld controllers as input devices. Surgeons hone skills using the Wii system.
35. CATEGORIES OF COMPUTERS 1. Personal computers 2. Mobile computers 3. Game Consoles 4 _____ Control the access to hardware, software, & data Provide a centralized storage area
36. CATEGORIES OF COMPUTERS 1. Personal computers 2. Mobile computers 3. Game Consoles 4. Servers 5 _____ computers
37. Mainframe Computers are Bigger Than Servers Very powerful & expensive Can handle hundreds or thousandsof connected _____ simultaneously
38. 6_____ Fastest, most_____ computers Able to process more thanone quadrillion instructions per second and growing! 1 quadrillion = 1,000 trillion
39. How fast are these supercomputers? Let’s try to understand the terminology used in the video (next slide). _____ = a floating point operation (I think it is a mathematical calculation of fractions.) I am going to think about one mathematical calculation. Kilo = 1,000 mathematical calculation per second Mega = 1,000,000 (a million) Giga = 1,000,000,000 (a billion; current PCs) Tera = 1,000,000,000,000 (a trillion) _____ = 1,000,000,000,000,000 (one _____ ) Currently (July, 2011) a Japanese supercomputer running at 8 petaflops is the world’s fastest computer
40. Click to view video
41. 7 - _____ computers? A special-purpose computer that functions as a component in a larger product
42. Examples of Computer Applications in Society Education Finance Government Healthcare Science Publishing Travel Industry p. 32-36 Figs. 1-36–1-43

43. Chapter 1 Complete