Re: Too Much Confusion
Your hard drive is just like any other component on your computer it can either perform up to the potential of the rest of the computer or it can create a bottleneck. Regular IDE has been creating bottlenecks for years, thus the introduction of SATA and RAID. You don't run your games, or programs straight off of CD usually. You load them to the hard drive because it gives you better performance. RAID boosts that performance even further, the the mother of them all SCSI. So, if you're a gamer and you're not running a RAID configuration you're doing yourself and your computer a disservice.
Depending on the drives used, a RAID 0+1 can increases your hard drive speeds up to ~40% (give or take). That's pretty significant. SCSI in the right configuration can transfer up to 1 GB/sec of data. That's incredible. Alas, SCSI is very hard to find in a gamer type motherboard and extremely expensive.