Screen capture ON MAC OS X

hi peeps!!!
well today I accidentally know how to take SCREEN CAPTURE...I know it is already ages people knew about this right?me too.but for windows of course;not mac.

so I googled it and found this:

1. To capture the entire desktop, press Command-Shift-3. The screen shot will be automatically saved as a PNG file on your desktop.
2. To copy the entire desktop, press Command-Control-Shift-3. The screen shot will be placed on your clipboard for you to paste into another program.
3. To capture a portion of the desktop, press Command-Shift-4. A cross-hair cursor will appear and you can click and drag to select the area you wish to capture. When you release the mouse button, the screen shot will be automatically saved as a PNG file on your desktop. (The file is saved as PDF in Mac OS 10.3 and earlier.)

I only use this 3 for the past 5 minutes,I guess mac/apple people really makes stuff that's user friendly and there a lots more that I didn't discover about this thing.you can find more ways(more Complicated ways!!!) **here**

guess what,I'm typing my PBL /homework right now...and I'm gonna show you using screen capture!! excited kan!!!(noobS!)

my PBL...nampak kah?

while watching Big BANG!!!haha

and reading Xia Xue!!!

p/s:sorry for the lame post....I know I am noobs with apple thingy..and naive!!!!...but this stuff makes me excited and wanna share with U guys!!!(rarely happen)

bye!!