Dell Dimension 8250

So recently an old dell has become available to me as my brother recently got a new laptop. This computer is from around 2004 and has specs as follows:

Pentium 4 2.4ghz
1gb PC800 RDRAM
Nvidia Geforce MX420 AGP Graphics Card
Some old HDD thrown in

At the moment it is running windows 7 which I installed on it about a year and a half ago. It actually runs it well with a very fast boot (around 30 seconds). It was used as a primary computer for an 8 year old, mostly youtube, rome total war and rugby 08. It was able to do these tasks perfectly and the only compromise was that to run full screen youtube windows aero had to be disabled. I think that the fact that an 8 year old middle of the line computer (When it came out) is still able to run the latest operating system and do so without any major flaws.