Mgt 240 Lecture

1. Mgt 240 Lecture Introduction and Computing at ND: File Storage and Hardware August 26, 2004

2. Today in Class • Introduction to lecture • File storage and backup • Computing hardware

3. Mgt 240 Lecture Introduction • Lecture syllabus • Objectives • Slides • Posted in several locations • Calendar • Text • Reading questions

4. Mgt 240 Lecture Introduction • Homeworks • Individual • Posted in several locations • Turned in to your folder in the dropbox folder • Due on Fridays at 5pm • Exams • Cover lecture, homeworks, and readings • Classroom expectations • Seating chart • Noise levels

5. Mgt 240 Grading • No way to get an A in the class without doing well in the lecture! • Hypothetical scenarios: • 500/750= 67% or D • 500+160+40= 93% or A • 480+160+40= 91% or A-

6. Questions?

7. Computing at ND: File Storage

8. Storage Media Used in Mgt 240 Excel JumpStart • CD-ROM disk • JumpStart files • Institutional File Space (IFS): Backup up JumpStart files

9. Storage Media Used in Mgt 240 Excel JumpStart • Your computer’s hard disk • Used while working on JumpStart files that have been copied to your computer’s desktop • Why were you instructed not to work on the file directly on the CD? • This is also where the Excel application files are located • This is also where your operating system is permanently stored

10. Storage Media Used in Mgt 240 Excel JumpStart • 3.5” floppy disk • Completed JumpStart files

11. Number of Bytes

12. Storage Media Characteristics and Capacities • CD-ROM • Compact disc • Small, round, medium made of molded polymer • Read-only-memory • Disc capacity of 650 MB • Single speed transfer rate of 150 Kbps

13. Storage Media Characteristics and Capacities • Hard Disk • Inside your computer • Stores and provides relatively quick access to large amounts of data • Electromagnetically charged surface/s • PC’s now come with several million bytes (GB’s) of storage capacity • Rotation speeds vary from 4500 to 7200 rpm • Disc access is measured in milliseconds

14. Hard Disk Thin steel platters Coated with iron oxide Represent bits by small magnetized areas

15. Storage Media Characteristics and Capacities • Floppy Disk • Random access • Removable • Magnetic medium housed in a rigid plastic cartridge • Can store up to 1.44 MB • Floppy disk drives often pre-installed on personal computers

16. Storage Media Characteristics and Capacities • Other types of portable drives you could take with you to lab • CD-RW • Flash memory

17. Office of Information Technology • Home page

18. Institutional File Space • NetFile (N: drive) • Primarily supports Windows and Mac community • AFS (H: and I: drives) • Primarily supports the Unix community • Why doesn’t OIT want you to work directly off your h: or n: drives?

19. Institutional File Space • Every student, faculty, and staff member gets their own personal IFS space • Students • 500 MB NetFile • 50-200 MB AFS • Can request more space if needed by filling out a quota increase form • Can access files from multiple locations • Can easily share files with others

20. Accessing Institutional File Space • Mapping a drive to someone else’s AFS space • Example: Mapping Prof. Ballou’s Public AFS folder • Mapping a drive to your NetFile space • Mapping a drive to someone else’s NetFile space • Ftp • Telnet

21. Accessing Institutional File Space • WebFile • Views • Create a view of the Mgt240 Lecture folder on the i: drive • Advanced interface

22. Backups of IFS • Files automatically backed-up nightly for both NetFile and AFS • NetFile • Backups for past 8 nights are available • Can access through webfile • AFS • Backup for past night is available • Can access through webfile: Yesterday folder

23. Security of IFS • NetID and password • Do not share your password • Change your password monthly • Don’t send your personal information in unencrypted emails • Lock out your Windows 2000/XP workstation any time you walk away from it • Press CTRL, ALT, DELETE • Click Lock Computer • Access rights • Can change access rights to folders from within Webfile

24. Computing at ND: Hardware

25. Hardware Used in Mgt 240 Excel JumpStart • Your personal computer • Work through exercises • Notre Dame cluster computers • Work through exercises

26. OIT Recommended Windows PC Features • Pentium 4, 2.8 GHzProcessor for Desktops (or equivalent) • Pentium M 1.5 GHz feature Centrino Mobile Technology for Laptops (or equivalent) • 256 MB RAM (or more) • 30 GB (or more) Hard Drive Space Total • Free Space on Hard Drive: 1 GB (or more) • Other hardware: CD/DVD, 10/100NIC, 802.11b Wireless for laptops

27. OIT Recommended Mac Features • G4/G5 Processor • 256 MB RAM (or more) • 30 GB (or more) Hard Drive Space Total • 1 GB (or more) Hard Drive Space Total • Other hardware: CD/DVD, 10/100 NIC, 802.11b Wireless for laptops

28. Simple Computer Component Definitions • Processor • Executes instructions • RAM • Holds instructions for software that is currently open and running on your computer • Hard Drive • Stores operating system, applications, files that you want to save permanently on your computer • NIC (Network Interface Card) • Used to connect to a local area network • 802.11b Wireless • Standard for wireless local area network communications

29. Getting to Know Your Computer • Through the operating system • Open up the control panel on your computer • Double click on the system icon • General tab contains information about • Operating system • Amount of RAM • Hardware tab contains information about all hardware devices installed on your computer • Click on the Device Manager button to gather information about • Drives • Monitor • Network adaptor (NIC) • Ports • Processor • Storage • Click + sign to the right of any of these for a list of devices under each category • Right click a specific piece of hardware for more information about it

30. Getting to Know Your Computer • Through visual inspection • Look at your disk drives and ports • Through the documentation that came with your computer

31. Unsupported Hardware on ND Campus • Game Systems (e.g., XBox, Sony PlayStation, etc.) • WirelessRouters & Network Routers/Hubs

32. Summary of Computers on Campus • Computer Platform Report

33. Cluster Hardware • ND Cluster Hardware List

34. Other Hardware on the ND Campus • Network equipment • Routers • Switches • Servers • Application • File (H:, I:, N: drives)

35. Homework • Due next Friday, September 3rd, at 5pm • Turn in to your netid folder in dropbox folder in lecture folder on i: drive • Designed to familiarize you with your computer’s features • Using alt-prt scrn to capture the active window

36. Assigned Reading • Read and use the hardware section of chapter 2 (pp. 46-67) in text as a reference for your hands-on homework • Use http://whatis.techtarget.com/ as another reference for your hands-on homework • Following are questions that you should be sure you can answer based on your understanding of the text • Why is processor speed important? • What kind of measures can be used to gauge processor speed? • What are RAM and ROM? What are their roles? • Why does the amount of RAM in your computer make a difference? • What are specific circumstances in which you would be most likely to use each of the following?: a floppy disk, cd-rom, dvd, zip disk, storage area network? • What are the differences between crt and lcd monitors? • What are the main differences between personal computers, laptop computers, handheld computers, midrange computers, mainframe computers, and supercomputers?