© ExplorNet’s Centers for Quality Teaching and Learning 1 Describe applications and services. Objective Course Weight 5%

© ExplorNet’s Centers for Quality Teaching and Learning 2 What is an application?  A program that runs “on top” of the operating system (OS), that helps a user perform a task like playing media, web browsing, or creating a document.  Common examples:  Google Chrome  Microsoft Office  Windows Media Player (Native App)

© ExplorNet’s Centers for Quality Teaching and Learning 3 Native Applications  An application that has been developed for use on a particular platform or device.  Microsoft Windows has several:  Internet Explorer  Snipping Tool  Windows Media Player

© ExplorNet’s Centers for Quality Teaching and Learning 4 Internet Explorer  Web browser application  Newest version claims to:  Be faster and less cluttered  Include more privacy settings  Have better usability features

© ExplorNet’s Centers for Quality Teaching and Learning 5 Snipping Tool  An application that allows you to take screen shots, annotate them, and save them.  A capture can be:  A screen  A window  A rectangular portion of the screen  A free-form image.

© ExplorNet’s Centers for Quality Teaching and Learning 6 Media Player v. 12  An application that allows you to play back music, video files and view photos.  Streaming digital media files—audio, video, or photos—for playback or viewing from another computer or a server that hosts Windows media files is possible.

© ExplorNet’s Centers for Quality Teaching and Learning 7 Media Center  A multi-faceted application that provides a complete entertainment system for your computer.  Similar to Windows Media Player, but in addition you can watch, pause, and record HDTV, watch live TV and online programming, and listen to radio stations.

© ExplorNet’s Centers for Quality Teaching and Learning 8 More Native Applications

© ExplorNet’s Centers for Quality Teaching and Learning 9 More Native Applications

© ExplorNet’s Centers for Quality Teaching and Learning 10 Local vs. Network Applications  Local installation:  Simple, all files on local machine.  For applications that must be able to run with or without network/internet access.  Network installation:  Requires more configuration, files on a server.  Network applications usually need network access to install, launch, and run.  Offers administrators greater control over the app’s access rights.

© ExplorNet’s Centers for Quality Teaching and Learning 11 Local Installation Process  Find and run Setup.exe or a Microsoft installer (*.msi).  Follow the prompts until finished.  Common installation prompts:  License agreement  File location  Product key

© ExplorNet’s Centers for Quality Teaching and Learning 12 Network Installation Process Goes beyond the scope of this course due to server configuration, but we will provide a basic overview of how it’s done. 1.Set up a domain with Active Directory Domain Services (AD DS). 2.Create a Group Policy (GP) telling the server how to install the new application. 3.Create a Group Policy object (GPO) to link the new GP with a specific group of users or computers.

© ExplorNet’s Centers for Quality Teaching and Learning 13 What is AD DS?  A role that can be assigned to Windows servers.  It requires the server to be in a Domain.  A network in which all users, computers, printers, and security are registered with a central database (active directory) that is located on one or a cluster of central computers known as domain controllers.  Then, provides network with an Active Directory.  Storage space on a Windows server for objects and information that the server needs to perform its role.

© ExplorNet’s Centers for Quality Teaching and Learning 14 What are GPOs-Group Policy Objects?  An object that links a Group Policy to the computers and users within its control.  For example a GPO takes a collection of settings, a GP, and applies them to a specific set of users or a specific set of computers.  Group Policy - A collection of settings (policies) stored in an Active Directory.  For example, settings of what users are and are not allowed to do like access certain folders.

© ExplorNet’s Centers for Quality Teaching and Learning 15 Network Installation Using Group Policy A GPO (arrow) is the link that applies the GP to the Organizational Unit (OU). In this case it limits sales people from changing Admin files.

© ExplorNet’s Centers for Quality Teaching and Learning 16 Network Installation Summary If all that was a bit much to absorb, don’t worry…  What you need to know for the MTA:  With Microsoft Windows and Windows Server, GPOs can be used to install applications through the network.  We will now look at the two ways network installation can be carried out.

© ExplorNet’s Centers for Quality Teaching and Learning 17 Assign an App  Using Group Policy, administrators can “assign” or “publish” applications.  Assignment can be done by computer, computer group, user, or user group.  If a new app is assigned to a computer: The next time the PC boots up and a user with correct permissions logs in the app will install itself.  If a new app is assigned to a user: The next time that a user logs in and selects the application it will install itself.

© ExplorNet’s Centers for Quality Teaching and Learning 18 Publish an App  Publishing makes apps available to users.  Apps do not install unless the user chooses to install them.  A dialog box will appear at log on asking permission to install the application.

© ExplorNet’s Centers for Quality Teaching and Learning 19 Application Removal  Local removal is done by using the Programs and Features applet of the Control Panel.  Some applications come with their own uninstallation software that may be more thorough.

© ExplorNet’s Centers for Quality Teaching and Learning 20 Application Removal  Be aware that many uninstallers do not remove the files created by that application (e.g. documents left by Office).  Network application removal is handled only by the administrators, and can be carried out by a Group Policy as discussed earlier.

© ExplorNet’s Centers for Quality Teaching and Learning 21 What is a Service?  An application that runs in the background on a Windows machine to help the OS run other programs and services.  Many services depend on other services in order to function.  Services Console is the central management point of services in Windows.

© ExplorNet’s Centers for Quality Teaching and Learning 22 An Example Service  The WLAN AutoConfig service in Windows 7 is what allows users to easily:  Discover wifi networks  Connect to wifi networks  Configure wifi networks  Disconnect from wifi networks.  Without this service, users would need to install a third party software package to access wireless networks.

© ExplorNet’s Centers for Quality Teaching and Learning 23 Services Console

© ExplorNet’s Centers for Quality Teaching and Learning 24 Service Accounts  In order for services to operate, they often need elevated privileges.  Service accounts exist in Windows to permit the services to function without interruption.  The three default service accounts are:  Local Service  Local System  Network Service.

© ExplorNet’s Centers for Quality Teaching and Learning 25 Service Accounts Here’s a shot of the Windows Firewall service that uses the Local Service account to function.

© ExplorNet’s Centers for Quality Teaching and Learning 26 Service Dependencies  Recall that without the WLAN AutoConfig service, wireless access would require more work.  In order for the above service to work it “depends” on other services, too.  Without the other services listed in a service’s dependency tab that particular service cannot function.

© ExplorNet’s Centers for Quality Teaching and Learning 27 Service Dependencies  The dependency tab shows the services required for WLAN AutoConfig to work.

© ExplorNet’s Centers for Quality Teaching and Learning 28 Managing Services  If services need to be administered, the Services console is the most effective place to manage them, but not the only one.  Methods for managing services:  Services console  Services tab in MSCONFIG  Services tab in Task Manager.

© ExplorNet’s Centers for Quality Teaching and Learning 29 Managing Services  The Services console can be accessed by typing “services” or “services.msc” in the Start menu Search bar.

© ExplorNet’s Centers for Quality Teaching and Learning 30 Managing Services  To access services via MSCONFIG, simply type “msconfig” in the Start menu Search bar and click on the Services tab.

© ExplorNet’s Centers for Quality Teaching and Learning 31 Managing Services  To access services via Task Manager click on the Services tab after launching Task Manager window.

© ExplorNet’s Centers for Quality Teaching and Learning 32 Service Startup Options  The most common management done on a service is altering it’s startup types.  Automatic (Delayed Start): The service starts approximately two minutes after the system has completed starting the operating system.  Automatic: The service starts as the operating system starts.  Manual: The service must be started manually, by a user, a dependent service, or a program.  Disabled: The service is disabled and will not start.

© ExplorNet’s Centers for Quality Teaching and Learning 33 Service Startup Options  Changing the Startup type is done on the General tab of a service.