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CHAPTER 3 Windows
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3.1 Operating System
System software consists of the programs that control or maintain the operations of the computer and its devices
Operating systems
Utility Programs
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3.1 Operating System
An operating system (OS) is a set of programs containing instructions that work together to coordinate all the activities among computer hardware resources.
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3.1 Operating System
Functions of OS
Starting a computer
Providing user interface
Managing programs
Managing memory
Scheduling jobs
Configuring devices
Establishing an Internet connection
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3.1 Operating System
Types of Operating Systems
A device-dependent program is one that runs only on a specific type or make of a computer
Proprietary software is privately owned and limited to a specific vendor or computer model
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3.1 Operating System
Categories of Operating Systems
1) Stand Alone Operating Systems
Is a complete operating system that works on a desktop computer, notebook computer, or mobile computing device
Some are called client operating systems
Client operating systems can operate with or without a network
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3.1 Operating System
Example of Operating Systems
Stand – alone
DOS (Disk Operating System)
Windows XP
Windows XP Home Edition
UNIX
Linux
Mac OS X
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3.1 Operating System
Categories of Operating System
2) Network/Server Operating Systems
It typically resides on a server
The client computers on the network rely on the server(s) for resources
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3.1 Operating System
Examples of Operating Systems
Network
Windows 2000 Server
UNIX
LINUX
Solaris
NetWare
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3.1 Operating System
Categories of Operating System
3) Embedded Operating Systems
The operating system on most PDAs and small devices that resides on a ROM chip
Examples:
Windows Embedded CE
Windows Mobile
Palm OS
iPhone OS
Blackberry
Embedded Linux
Symbian OS
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3.1 Operating System
Embedded Operating Systems
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12. 3.2 Starting and Managing Windows
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3.2 Starting and Managing Windows
Mouse Operation
All modern computers have a variant
Allows users to select objects
Pointer moved by the mouse
Mechanical mouse
Rubber ball determines
direction and speed
The ball often requires
cleaning
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3.2 Starting and Managing Windows
Optical mouse
Light shown onto mouse pad
Reflection determines speed and direction
Requires little maintenance
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3.2 Starting and Managing Windows
Interacting with a mouse
Actions involve pointing to an object
Clicking selects the object
Clicking and holding drags the object
Releasing an object is a drop
Right clicking activates the shortcut menu
Modern mice include a scroll wheel
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3.2 Starting and Managing Windows
Benefits
Pointer positioning is fast
Menu interaction is easy
Users can draw electronically
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3.2 Starting and Managing Windows
Icon On Desktop
An icon is a small image that is used to represent a program, file, link to a Web page, picture, or other type of information stored on a computer
Usually, double-clicking on an icon causes the program, file, Web page, or picture to open
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3.2 Starting and Managing Windows
Icon On Desktop
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3.3 Files and Folder
Create Files & Folder
There are a number of techniques to create a folder, all of which achieve the same effect
Right click on an open area of your desktop, or in an open area of Windows Explorer.
Then left click New
Then left click Folder
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3.3 Files and Folder
Once your folder appears either on your desktop or in Windows Explorer you will notice that the folder name is highlighted
Type in the name you want to give to your newly created folder, and then hit Enter to complete the process
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3.3 Files and Folder
Delete Files & Folders
When deleting files or folders in Windows the default delete behaviour is for the file or folder to be moved to the recycle bin
There it will remain till either a) you empty your recycle bin or b) you fill your recycle bin
When your recycle bin is full the oldest files will be permanently deleted to clear room for the newly deleted files
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3.3 Files and Folder
This is the easiest method to delete files and folders in Windows.
You can use either Windows Explorer or My Computer to navigate to the file or folder you wish to delete.
Using Windows Explorer: Open Windows Explorer (Left click Start then Programs then Accessories then Windows Explorer) or (Hold down the Windows key and press E)
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3.3 Files and Folder
Using My Computer: Windows XP Users click Start then My Computer. All other Windows users double left click the My Computer icon on your desktop.
Navigate to the file or folder that you would like to delete.
Highlight the file or folder by left clicking it once.
Now press the Delete key on your keyboard.
A window will then popup asking for confirmation to send the file or folder to the Recycle Bin. Click Yes to move the file to the recycle bin or No to keep the file where it is.
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3.3 Files and Folder
Searching Files
To search for a file or folder:
Click start and the click search
In the Search Companion dialog box, click All Files and Folders
Type part or all of the name of the file or folder, or type a word or phrase that is in the file
In the Look In box, click the drive or drives, folder or network location that you want to search
Click Search
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24. 3.4 Windows Explorer and My Computer
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3.4 Windows Explorer and My Computer
Windows Explorer is an application that is part of the Microsoft Windows operating system and provides a graphical user interface for accessing the file systems
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25. 3.4 Windows Explorer and My Computer
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3.4 Windows Explorer and My Computer
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3.4 Windows Explorer and My Computer
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3.4 Windows Explorer and My Computer
My Computer is the source of all resources in the computer including drives, control panels and data
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3.5 Control Panel
The software equivalent of a physical control panel that provides options for the user to change the appearance or actions in an application; in system software such as the operating system; or in the hardware
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