what are the minimum requirements of a good computer??

These days the standard configuration of a computer must be:

2 Gb Ram
240 GB Hard Disk
Intel Core 2 Duo processor
Cd/DVD combo writer
Wifi enabled
webcam

Well I think the minimum system requirements for a good computer are:

CPU: at least 2.0 Ghz
Memory: at least 512 mb
VGA: at least 256 mb
HDD: at least 80 gigabytes

This is what I would advice my clients - if you have the money, buy the best at that moment so the technology can last you up till 5 years at least. If you're on a budget, just buy whatever that's needed, the basic functions which you require. If you have some extra, buy something that's upgradable. One can never place a universal minimum requirement as everyone's needs are different

here goes a configuration which i would like to buy and i am sure it will run for atleat 3 years with similar performance.

1. intel quad core cpu
2. 7.1 audio
3. 64 gb agp card
4. 240 internal and 1 tb external harddisk
5. bd writer (dl support)
6. 17" lcd monitor
7. external tv tunner with recording facility
8. wireless kbd with mouse port on it.
9. 4 gb ram ddr-2, 1 ghz, dual channel
10. 12 usb port