what is the difference between GUI (Graphical User Interface) and CLI (Command Line Interface)?

Question

plz provide 2 to 4 difference in points like:
GUI
1-....
2-.... and so on
CLI
1-.....
2-..... and so on

Answer 1

a GUI (graphical user interface)
is
1. a clickable window (some sort of graphics) that accesses program commands that you can work with the mouse or keyboard

2. MUCH simpler to use than a CLI if you don't know CLI commands

CLI
1. running these programs don't do anything by themselves, no clicky / type stuff to work with.
2. instead you've to specify a command line at the end of the program
3. you do this by using a shortcut and say,
blahblahblah.exe -run "C:\mss.txt"

GUI over CLI any day for me. (it's like WinLame, vs Lame mp3 encoder, original Lame mp3 encoder came in CLI, where as WinLame uses a GUI)

Answer 2

1. GUI is using pixmap method of output; while CLI is outputing by text character.
2. GUI has much relaxed learning curve, although the complexity of programming prevent the software in a GUI environment to be written for a power-user setting; while CLI demands very steep learning curve, but CLI environment allows power-user software to be easily written.
3. GUI needs a mouse as a basic input device; CLI requires no mouse to use.

Answer 3

ez. with cli, you have to type a lot of commands, know a lot of syntax. however, experienced cli users
develop scripts, which help to make cli easier to use.