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Mgt 240 Lecture Introduction and Computing at ND: File Storage and Hardware August 26, 2004 Today in Class Introduction to lecture File storage and backup Computing hardware Mgt 240 Lecture Introduction Lecture syllabus Objectives Slides Posted in several locations Calendar Text

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Mgt 240 Lecture

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Mgt 240 Lecture

Introduction

and

Computing at ND:

File Storage and Hardware

August 26, 2004


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Today in Class

  • Introduction to lecture

  • File storage and backup

  • Computing hardware


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Mgt 240 Lecture Introduction

  • Lecture syllabus

    • Objectives

    • Slides

      • Posted in several locations

    • Calendar

    • Text

      • Reading questions


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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


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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-


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Questions?


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Computing at ND: File Storage


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Storage Media Used in Mgt 240 Excel JumpStart

  • CD-ROM disk

    • JumpStart files

  • Institutional File Space (IFS): Backup up JumpStart files


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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


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Storage Media Used in Mgt 240 Excel JumpStart

  • 3.5” floppy disk

    • Completed JumpStart files


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Number of Bytes


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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


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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


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Hard Disk

Thin steel platters

Coated with iron oxide

Represent bits by small magnetized areas


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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


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Storage Media Characteristics and Capacities

  • Other types of portable drives you could take with you to lab

    • CD-RW

    • Flash memory


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Office of Information Technology

  • Home page


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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?


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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


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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


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Accessing Institutional File Space

  • WebFile

    • Views

      • Create a view of the Mgt240 Lecture folder on the i: drive

    • Advanced interface


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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


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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


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Computing at ND: Hardware


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Hardware Used in Mgt 240 Excel JumpStart

  • Your personal computer

    • Work through exercises

  • Notre Dame cluster computers

    • Work through exercises


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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


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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


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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


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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


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Getting to Know Your Computer

  • Through visual inspection

    • Look at your disk drives and ports

  • Through the documentation that came with your computer


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Unsupported Hardware on ND Campus

  • Game Systems (e.g., XBox, Sony PlayStation, etc.)

  • WirelessRouters & Network Routers/Hubs


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Summary of Computers on Campus

  • Computer Platform Report


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Cluster Hardware

  • ND Cluster Hardware List


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Other Hardware on the ND Campus

  • Network equipment

    • Routers

    • Switches

  • Servers

    • Application

    • File (H:, I:, N: drives)


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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


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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?


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