If it said that the HDD is a bottleneck in most computer operations how is it that an SSD supposedly faster then an HDD if BOTH are connected to a SATAII port?
I would say if you were using one of the new 32 or 64 mb cache drives or an ssd drive then it wouldn't be a bottleneck. If you are using an older 2, 8, or possible 16mb cache drives then its very possible that the hdd is the bottleneck.
Do me a favor. Take two hard drives and plug them both into either a sata 3gb/s or 6gb/s port. Now copy and paste a file from one hard drive onto the other. How fast did that file transfer? Was it 3gb/s or 6gb/s respectively? There's your answer.