What do i need to upgrade to play games like Flight simulator X or Brothers in arms?

Well I have an old PC with stone-age hardware :



Pentium 4 1.7Ghz,

512MB RAM

128MB Graphic card.



I have used my PC just for surfing but lately I have been figuring playing the games above..what do you suggest I upgrade first if not everyone of them? What do I buy? Thanks A lot for dropping by. I'll count on your answers..Thanks againWhat do i need to upgrade to play games like Flight simulator X or Brothers in arms?
all

ram about 1-2 Gb

graphic 512 best

and 2.0Ghz and above processor

u need this to play all the new and latest game

believe me

its worth itWhat do i need to upgrade to play games like Flight simulator X or Brothers in arms?
Better to buy a new computer, but Upgrade Ram to a two gig ram and a better graphics card. ddr4 (I think updated)