being a laptop...you might not have as much freedom in overclocking as desktops. And its been a while since I've owned a pre-built system, but I seem to remember that most usually lock their BIOS.
the general idea is that in the BIOS...you have a core frequency and a multiplier. You can change the frequency of the CPU, but unless it's an extreme CPU (for intel) or an FX CPU (for AMD) you cannot change the multiplier...only the core frequency. So if you have a base frequency of say 200MHz...and a multiplier of 9 then you CPU speed is 1.8GHz (9x200MHz). So if you change the frequency to say 250MHz...then 9x250 = 2.25GHz. So your CPU would become a 2.25GHz CPU for no extra money. This would generate more heat...so have sufficient cooling.
there's a lot more to it though...so read and become educated...and ask questions before you do anything. you will void warranties and can damage stuff...
It depends on who you're talking to, to my wife overclocking is setting her clock 15 minutes ahead so she can fool herself into getting to work early, works for her.
Doesn't work for me because I know the clock is set ahead and always take that into consideration, I guess thats one difference between the male and female mindset.
Sorry, Just a little humor here.
Please would somebody tell me what overclocking is ? (in detail)
/////Overclocking is running your computer faster than it was factory spec'd to run, by manipulating default voltages and speeds of hardware components.
What do you need to overclock ?
/////Overclockable hardware and the education of How to do it.
What does overclocking depends on ? (like RAM, CPU, GPU etc.)
/////Hardware capabilities and the extent of your overclocking knowledge.
What can BE overclocked ? (RAM, CPU, GPU etc.)
/////All of the above
Can any computer can be overclocked ?
What are the advantages and disadvantages of overclocking ? (temporary/permanent and long-term/short-term)
/////Advantages, really all boil down to getting more than you actually paid for.
Disadvantages, are the bad electrical burnt smell from a serious overclock failure, is hard to get out of the room and nose hairs.
Since you're entertaining the thought of overclocking then thoroughly educate yourself first, read the overclocking guides, search the internet for different overclocking websites, get a real solid background under your belt.
Learn First, Then Do!
Then you'll have more specific questions targeting an exact obstacle you need to overcome, to achieve the overclock you may be after.