In the Ubuntu documentation i have gone through PowerPC . Whats the matter with a Power PC and what are the good things if we compare with General PC .
PowerPCs dont have any special powers! :D
PowerPC is just the name for a different processor architecture (compared to x86). PPCs were used most extensively by Apple for their Macs until 2006, when they switched to the usual Intel x86 ("General PC") architecture.
At this point, the PowerPC userbase consists mostly of people with the older Macs, and compared to any modern PC, a PowerPC is most certainly at a disadvantage when it comes to speed, graphics, etc.
Note: This is not to imply that there is anything wrong with the PowerPC architecture; small embedded PPC processors are still used very successfully in peripherals like GPUs (eg PowerVR in the Intel CedarTrail platform), on RAID cards (eg 3ware 8xxx/9xxx), etc. Of course, that has nothing to do with Ubuntu :)
