upgarade configuration

Your upgradability is limited by your motherboard. You should not upgrade your processor. You will see very little improvement. Upgrading your RAM is a good idea, but we really need to know what you plan to do with this computer. For basic tasks 512MB is a good amount of RAM. If you plan to do some gaming 1GB is good. If you plan to upgrade to Vista, you may want to think about scavenging parts from it and building a new PC. Tell me your budget and needs and I'll advise you better.

if you are planning to do a complete upgrade, a compute that will hold good for the next 4 to 5 years which will work with all versions or windows vista then this is what you should be looking for 2.66 dula 2 core processor with 1066 FSB min of 2 GB Ram with 733 fsb 200 GB of hard drive. 253 MB Nvidia Graphic card that is what i am using now and ver pleased with the performance. if you can do that all the best to you.

The upgrade limitations are governed by whatever your motherboard will support, unless of course you consider changing the motherboard. In the case of a 2 Ghz P4, there is scope to change the processor, and you can always add more hard drive space than you possess. However, the first thing that I would alter would be the RAM, because this appears to be the weakest link in your system at the moment.

First of all put atleast 512 MB of RAM & 80 or 160 GB of Hard Disk

First, I'd make an estimate cost if it's worth it to upgrade or buy a new system to keep up with the system requuirements of the newer softwares in the market. Based on your system you can upgrade your processor, I think your processor is a socket 478. There's a 3ghz socket 478. You can still retain you 40gb hdisk but it's better to add a big slave drive like somewhere between 180gb. RAM, max it out to the maximum your motherboard will allow it. I think your mobo can support up to 2 gig of memory. Those are the things you can upgrade, processor, increase ram or ram speed, add additional slave drive and if you have enough money left go and purchase a dvd writer with lightscribe technology.

Well, it depends actually, if you're on a budget, you should upgrade only those what you needed most, most basic upgrades include memory (RAM) for faster processes and Hard Disk for space requirements. A video adapter also is upgraded for graphic purposes, a 128 MB video card will do good for you. Other upgrades include the addition of TV-Tuner for watching television stations on your computer, a good sound card like Sound Blaster and speakers with subwoofer for better audio.