IT Essentials 1 Chapter 5 Windows 9x Operating Systems.
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Transcript of IT Essentials 1 Chapter 5 Windows 9x Operating Systems.
![Page 1: IT Essentials 1 Chapter 5 Windows 9x Operating Systems.](https://reader035.fdocuments.us/reader035/viewer/2022062315/5697bf931a28abf838c8fb9f/html5/thumbnails/1.jpg)
IT Essentials 1 Chapter 5
Windows 9x OperatingSystems
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Windows 9x Systems
• Windows 95 • Windows 98 • Windows Millennium Edition (ME)
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9x File Structure
• Directories and folders are used interchangeably to describe a place to store information.
• Files are stored utilizing a "tree" structure
• Windows 3.1 and DOS file names are limited to eight letters plus a three-letter suffix called an extension ( 8.3 convention)
• Windows 98 and later allow filenames of up to 255 characters.
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• The characters / \ ; : * ? " < > should not be used.
• Uppercase characters are treated the same as lowercase in Windows
• Drive letters use the 26 letters of the alphabet followed by a colon.
• Each drive can also be assigned a name called a drive label which can be up to 11 characters long.
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Directories and folders
• The trunk or main starting place is the root directory or root folder.
• Branches of the tree are folders and connect to the trunk.
• Minor branches attach to these major branches as sub-folders which are inside folders.
• Files are like leaves attached to the major and minor branches
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Windows Explorer
• Windows Explorer displays the hierarchical structure of files, folders, and drives on a computer. ( Not Internet explorer!!!)
• Can access Explorer by right clicking My Computer and the clicking Explore.
• Click on the plus sign to view all the files and folders in it
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• Clicking on the minus sign will cause the sub-folders to collapse.
• File management is done to organize or clean up a computer.
• New folders can be made by right clicking, then selecting NEW and the FOLDER.
• Renaming can be done by clicking once on the folder to highlight it and pressing the F2 key.
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Recycle Bin
• The Recycle Bin can be used to temporarily delete or permanently delete files from the computer.
• Until the recycle bin is emptied, the files remain on the hard drive
• Right-clicking the file and selecting Restore restores it to its original folder.
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System Properties Applet • The default tab is the
General tab which lists information relating to the system.
• Includes operating system version, licensing information, and system specifics such as processor type and the amount of memory.
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System Properties Applet
• Device Manager provides the user with a list of all of the hardware within the system and allows the user to view which system resources are being used.
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System Properties Applet• Hardware
profiles allow the user to have different hardware configurations for the same operating system.
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System Properties Applet • Performance tab• Displays
information about the performance statistics of the current system and allows access to the virtual memory and file system settings.
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Add/Remove Programs
• Use this program to remove programs that have been installed, to install Windows specific components that were not installed initially, and to create a Windows startup disk.
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Display
• This allows the user to set a screensaver, change the background color, change the look and feel of windows, as well as change display resolution settings.
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Sounds
• The Sounds utility allows the user to choose which sounds are played for different system events, such as when the computer is booted up or shut down.
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The Registry
• The Registry is a hierarchical database that is an efficient management system for all of the information needed by the Windows operating system.
• The Registry is made up of the System.dat and User.dat files.
• The system.dat file contains information about the hardware in the system
• The user.dat file contains user specific information.
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REGEDIT
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• The Registry includes 6 H-keys:
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HKEY_LOCAL_MACHINE• This key contains
computer-specific information about the type of hardware, software settings, and other information. This information is used for all users who log on to this computer
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HKEY_CURRENT_CONFIG
• This key points to a branch of Hkey_Local_Machine\config that contains information about the current configuration of hardware attached to the computer
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HKEY_CLASSES_ROOT
•This key points to a branch of Hkey_Local_Machine that describes certain software settings
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HKEY_DYN_DATA
• Points to a branch of Hkey_Local_Machine that contains the dynamic status information for various devices as part of the PnP information.
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HKEY_USERS
• Contains information about all the users who log on to the computer, including both generic and user-specific information.
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HKEY_CURRENT_USER
•Points to a branch of Hkey_Users for the user who is currently logged on.
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•Well Done!!!
•Half way through!!!