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A CPU is a single bit of hardware that handles general processing, you can have one or more CPU.
A CPU Core is the part of the CPU that does the processing, you can have multiple Cores per CPU.
In the case of the Core 2 Quad that means there are 4 Cores on 1 CPU.
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Thanks for paying attantion!
here, there are some more queries,Please guide.
This Core is something like a Chip[Physically Present thing] or Just it's a kind a algorithm?
If it is any kind of chip then how it works for a single application?
Is that application distributes to 4 cores for process?, And thus it Improves Performence?
Is it something like that?
If there are 4 chip of core then it can Improve performence upto 4 times then a single core??
Actually I m still confuse in cores and it's work. 
Believe Yourself™ :->™
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A processor is a very difficult thing to understand all in one sitting. You will have to do some research about it yourself. If you don't know English all that well, Wikipedia.org[^] has several language translations. But a link to an English article about multi-core microprocessors is here[^].
To give you a light overview of the core:
You are right, on a high level the "core", technically known as a die, is a physical aspect of the processor; but it is actually just a name for a group of specialized components. This is the main area of computing and largely includes the Arithmetic and Logic Unit (ALU)[^], a series of registers[^] (or boolean gates), and some tri-state[^] buffers whose functions are essentially "on", "off", and "disconnect". This is a gross understatement of the core, so to get a better idea of what it looks like, check out this picture[^] of the core, or die, of an x86 Pentium processor.
From application to processor:
Any piece of software on the computer, the Operating System (such as Linux, Microsoft Windows, Solaris, BSD, etc.), or any application that you install and use, and even any application that you may write, must all be converted at some point into a language known as Assembly Code[^]. This language is not standard for all processors and accompanying hardware, the name Assembly Code just refers to all languages that must directly be interpreted by the hardware. A single processor can only ever do one thing at a time, but today's processors operate so fast that it gives the illusion of real multitasking. The applications simply get in line and wait for their turn to pass an instruction through the processor. The speed in which the instructions are processed is determined by the clock speed[^].
Now, the real performance gain is in having more than one processor operating at one time. There are many ways to achieve this; one way, like you mentioned, is to have multiple cores on one or more chip(s). The quad core processors are 4 die arranged around the necessary input/output operators. So you are roughly getting the performance of 4 independent processors. In my experience, and this is just my opinion, I would much rather have two (or more) independent processors than one multi core processor. The two independent processors have double the pin count and can physically handle more data I/O than a multi core setup.
I know this response was rather lenghy, but I hope it gave you somewhere to start learning about processors. There should be plenty of material from Wikipedia to keep you busy for a while, too.
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Why don't you have access to Wikipedia?
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It's Some kinda settings in firewall installed in my organization, and this is applicable to all employee.
This is only for high bendwidth[Good Speed for (FTP)] and so called 'DISIPLINE'  , Nothing else.
So for me this code project is my wikipedia
Believe Yourself™ :->™
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Do u really get what exactly Quad core is?
if yes then please explain..
thanks 
Believe Yourself™ :->™
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Ok, if you are still having trouble understanding what a quad core processor is then let me break it down for you (just keep in mind that this is on a very high level):
Q::What is a quad core processor?
A::A quad core processor is 4 processors on one chip.
Q::What is the purpose of a quad core processor?
A::If you are familiar with servers, you know that they often use more than one processor on the motherboard (or mainboard, system board, etc.). Many times they will use 2 and 4 processors. Compaq, among others, even makes a server with 8 processors on the motherboard. As you may know, these type of setups are very expensive. This is where quad core processors shine; they bring the same power of the high end servers to your desktop, and are much less expensive.
Q::What can a quad core processor do for me?
A::Let's pretend that you have a computer equiped with a quad core processor. Let's also pretend that you have 2 video cards each with dual monitor output, so we can drive 4 displays at the same time. Now we want to watch a movie in full HD on one monitor, surf the internet in another, do some serious photo editing with Adobe Photoshop in another monitor, and run a virtual machine of Windows Server 2003 hosting a website using IIS in another monitor. It sounds like a lot of stuff happening at one time, but with a quad core processor and enough RAM to keep up with it, this is possible.
If you are still confused, try to give some details as to exactly what it is you are still confused about.
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Hello,
I am developed a windows service in c#.net3.0(WCF). There is a requirement, that, this service should spontaneously search for a file.mpg in linux folder.
My service will run on the windows platform, there is an another service running on linux and creates .mpg file in its folder. Now my service has to search for the file in linux folder.
Did anyone has met with the similar requirement ever? if so, how you have solved or met this. Please guide me on this.
Thank you
Anumadhu.K
Anee
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Two approaches that come to mind are:
1) share the target folder on the linux system so that the windows system can see it
2) have the two services talk to one another and exchange any files between themselves
Judy
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You need to run Samba on your linux box. Then just modify /etc/smb.conf to list the directory(s) and permissions you want to share on/with the Windows network.
You will have to work a little bit with the encrypted (Windows) and unencrypted (Samba) passwords to get them to play nicely together.
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Hi all,
I currently using Microsoft Windows XP with IIS Web Server, i want to view page with WML file it always say download.
I have add MIME Type already, if you have any solution, please tell me.
Thanks
Socheat
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Hi All
I want to hide a folder using ms dos command.
Any one knows what is the command and please don't forget to mention the command to make it visible. 
Thanks in advance.
v
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Hello again
I just looked abit at mkdir and md, none of them seem to have hidden params (i assume you mean the normal hidden attribute?)
There might be unusual commands to do that though, otherwise you might be able to use cscript from cmd.
Maybe something like this[^]
If you dont want to do that, just create a C++ program which you call from cmd which does the work for you...
//Johannes
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Hi,
the ATTRIB command is used to set or clear file/dir attributes, "hidden" is one of them.
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips:
- before you ask a question here, search CodeProject, then Google;
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get;
- use PRE tags to preserve formatting when showing multi-line code snippets.
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Thats a nice command.
Its allways interesting to find new commands within cmd, there are so many...
//Johannes
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Hi !!
Thanks for the reply. I will work around this.
One more question. Can i set password for any folder in windows XP ? If yes then how ?
Thanks in advance
v
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To make folder password protected, it seems u may need to write low level driver. Not sure. I also wanna do the same.
Come online at:-
jubinc@skype
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i am in a office so cant come on skype right now, sorry
v
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I do not think we need to write any program. I guess there is some command in ms dos to perform this task. My friend did that way back long but he also has no idea about it now.
v
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See, we can prevent folder from accessing/deletion. But for password protection, not sure, low-lever driver must be written.
Come online at:-
jubinc@skype
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ATTRIB has been around since the days of DOS 2.0
THere is no command to "password protect" a folder. None of the file systems Windows supports offers this kind of functionality.
It is possible, however, to write a driver that creates a file and treats it like an extension to the file system. If you're comfortable with C++ and writing drivers for Windows, great, have a nice time. If not, you've jumped into the ocean without knowing how to swim.
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That's y I mentioned, NOT SURE.
Come online at:-
jubinc@skype
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So, did you get your answer? If you have not. The command is ATTRIB
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