would 2 gb ram would be ok for using win 7 ultimate
Yes, its sufficient.
But this is the wrong section. Better post in Software section for discussion.
Yeah, 2 GB RAM would be sufficient for Windows 7 Ultimate, as long as you don't do any highly multimedia editing stuff, or 3D modelling.
BTW, you could have kept the name of the thread a more meaningful one!
Its better to have Win 7 ultimate X86 installed than X64, as X64 [64 bit OS] is more demanding than x86 & it utilizes less.
@Sid: Post this thread link to ICO [admins] to move it to Hardware Q&A or Software Q&A.