You can start the Add/Remove Applications tool by selecting Applications -> Add/Remove from the Panel menu. If it’s been a while since your Ubuntu workstation has contacted the software repositories, you may see a notice message telling you the list may be out of date and asking whether you want to update it. Click the Reload button to update the list of available applications.
The Add/Remove Applications window consists of four sections:
• The software catalog
• The Applications panel
• The Filter drop-down menu and Search text box
• The Application Description window
The application software catalog appears on the left side of the Add/Remove Applications window. It breaks down the applications into categories to help you find applications. There are eleven categories of applications you can browse through:
• Accessories: small utilities that can enhance your desktop experience, such as an advanced calculator, an alarm, a virtual keyboard, and a dictionary
• Education: programs for supporting educational purposes, such as a test and exam editor, educational games, and language translators
• Games: programs to help entertain and amuse you
• Graphics: programs for handling photos and images and for drawing pictures
• Internet: programs for accessing Internet features such as email, web browsing, and news reading
• Office: alternative office productivity tools such as basic word processors, calendars, and finance programs
• Other: the junk drawer of utilities and small programs, including programs for setting monitor features and setting laptop touchpad features, and packages restricted by patents or copyrights
• Programming: Programming tools such as integrated development environments
(IDEs) and editors, as well as compilers and debuggers
• Sound & Video: a collection of multimedia applications for advanced audio and video capturing, editing, and CD burning
• System Tools: utilities that interact with the Ubuntu system, such as a battery monitor, all-in-one configuration editor, alternative file managers, and file backup managers
• Universal Access: applications that provide assistive technologies for workstations
Selecting a catalog from the list automatically filters the Application panel to display only the applications in that catalog.
The Filter drop-down menu and Search text box allow you to fine-tune the applications listed in the panel. The drop-down menu allows you to select the type of applications listed in the panel:
• All Available Applications: all applications available within the configured Ubuntu software repositories
• All Open-Source Applications: only applications that are part of the open-source community
• Canonical-Maintained Applications: only applications that are supported by Ubuntu and Canonical, Ltd.
• Third-Party Applications: applications that are not part of the Ubuntu software
• Installed Applications Only: only applications that are currently installed on the workstation
Selecting one of these options immediately changes the application list window to display only the applications that meet the filter specification. The Search box allows you to search the application names and descriptions for keywords. Only applications that meet the search keywords appear in the application list window.
Source of Information : Wiley Ubuntu Linux Secrets
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