shell
KodakAiOBonjourAgent.app
OS is system application, which may be considered as collection of application made up of techniques for operating the pc & providing an environment for performance of programs. It's an user interface between user & pc...
You click on an icon and a window opens . you click a file to install a program you You click an icon and a programs starts. You click on a file to open it and OS presents you options as to which application you want to use to work/play/open that file. You click shutdown button and OS gets shut. You click an icon and the user is logged off . You click an icon and OS gives you option to switch the OS user. Someone requests you to add a user and you create a user this process is event driven. Now I have given you a framework run with it and start writing your paper.
The Finder is the default application program used on the Mac OS and Mac OS X operating systems it is responsible for the overall user-management of files, disks, network volumes and the launching of other applications.
Kernel And Shell
The user mode is :a mode that prvides an interface between the application and the OS and only has access to the hardware resources through rhe code running in kernel mode .Type your answer here...
yes a Symbian is a multi user os unlike open source os as that of androids,but androids do support multi user os.
An Operating System Software (OS) is the name given to programs that cooridate all the activities among computer devices. The OS contains instuctions that allow the user to run application software.
single user os is that os which support only one user at a time and multi user os is that which support more than one user at the same time
modules
If you mean the 'Operating System', it is the portion of the computer the user interacts with to input instructions. Things like Windows and Mac OS X are Operating Systems.
In GUI the os which are preloaded for the application either by point & draw device or URL path are reffered as GUI system.whereas kernel are primarly stored in the contacted area of memory & not accessible for user application.