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IST 222. Day 3. Homework for Today. Take up homework and go over Go to Microsoft website and check out their hardware compatibility list. Complete discussion from Day 2 Outline. Read about the hardware – Chapter 2 pp. 42-51. How an Operating System Works. An OS Provides a User Interface

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ist 222

IST 222

Day 3

homework for today
Homework for Today
  • Take up homework and go over
  • Go to Microsoft website and check out their hardware compatibility list
how an operating system works
How an Operating System Works
  • An OS Provides a User Interface
  • An OS Manages Files and Folders
  • An OS Manages Applications
  • An OS Manages Hardware
an os manages files and folders
An OS Manages Files and Folders
  • Windows uses several different file systems:
    • FAT – most recent version is FAT 32
    • NTFS
      • Supported by Windows NT, 2000 and XP
      • Designed to be used on hard drives to give more security than does FAT
files and directories
Files and Directories
  • When a hard drive is first installed and formatted, there is a single directory on the drive that is called the root directory (C:\)
  • A physical drive can be divided into one or more partitions, either primary or extended
  • Primary partition can have just one logical drive
  • Extended partition can have one or more logical drives
  • Most hard drives contain one primary partition that has one logical drive (C:) and one extended partition that has one or more logical drives
  • Each logical drive is formatted for a specific file system (FAT or NTFS)
  • Each logical drive has its own root directory
  • C: might be formatted using FAT and D may be formatted using NTFS
an os manages applications
An OS Manages Applications
  • OS allows us to install and run a application
  • XP is available to the application for the entire time it is running
  • The application passes certain information to XP as it executes
  • An application is written to work with a specific OS
  • Windows NT/2000/XP offer four ways to execute software:
    • Shortcut icon on the desktop
    • Use start menu
    • Use the run command
    • Use Windows Explorer
os manages hardware
OS Manages Hardware
  • OS uses device drivers to interface with hardware
  • Device drives are small programs stored on the hard drive
  • A device drive is specific to a certain device
  • Windows 98 supports 16-bit and 32-bit drivers
  • Windows NT/2000/XP only support 32-bit drivers
  • Always check HCL before installing a device
os tools
OS Tools
  • Device Manager – primary tool used to manage hardware devices
  • You can update a driver, enable or disable a device, or uninstall a device from this window
  • System Information Utility
    • Similar to Device Manager, but gives more info
  • Microsoft Diagnostic Utility – available in DOS and Windows 9x
homework for next class
Homework for Next Class
  • Chapter 2 – Go over the Reviewing the Basics – p. 69. You don’t have to turn this in, just go over the material
  • P. 71 of your A+ text: Project 2-1 – Using the System Information utility.

Answer questions a.-g. using this utility.

  • Lab 1.3 of your lab book. Use Shareware to examine a computer. Answer all questions associated with the lab.