Answer Posted / bob

graphical user interfaceTweet
Abbreviated GUI (pronounced GOO-ee). A program interface
that takes advantage of the computer's graphics
capabilities to make the program easier to use. Well-
designed graphical user interfaces can free the user from
learning complex command languages. On the other hand, many
users find that they work more effectively with a command-
driven interface, especially if they already know the
command language.

Graphical user interfaces, such as Microsoft Windows and
the one used by the Apple Macintosh, feature the following
basic components:

pointer : A symbol that appears on the display screen and
that you move to select objects and commands. Usually, the
pointer appears as a small angled arrow. Text -processing
applications, however, use an I-beam pointer that is shaped
like a capital I.
pointing device : A device, such as a mouse or trackball,
that enables you to select objects on the display screen.
icons : Small pictures that represent commands, files, or
windows. By moving the pointer to the icon and pressing a
mouse button, you can execute a command or convert the icon
into a window. You can also move the icons around the
display screen as if they were real objects on your desk.
desktop : The area on the display screen where icons are
grouped is often referred to as the desktop because the
icons are intended to represent real objects on a real
desktop.
windows: You can divide the screen into different areas. In
each window, you can run a different program or display a
different file. You can move windows around the display
screen, and change their shape and size at will.
menus : Most graphical user interfaces let you execute
commands by selecting a choice from a menu.

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When i run a programm of orphan process. Instead of getting child's parent (ppid)=1 ..i get 1400 and it varies as per system. How can i findthe right soluion??? My pgm: #include # include int main() { int pid; pid=fork(); if(pid < 0) {exit(-1);} else if(pid==0) { printf("Child Process is Sleeping ..."); sleep(10); printf("Orphan Child's Parent ID : %u ",getppid()); } else { printf("Parent Process Completed ... %u ",getpid()); exit(0); } return 0; } Output:

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