CPU architecture is the layout of the cpu, it is its design -- where the cores, caches, etc are placed inside the cpu. Yes, it is important when buying a PC.
Ad. In some patients who suffer from frequent sinus infections or inflamed tonsils, fluid can become trapped and form into a 'pocket.' This sac then becomes a tonsil cyst. Under most circumstances, the doctor might decide to remove the cyst, unless it shows signs of draining on its own.
Cysts are abnormal sacs of fluid that can form anywhere in the body. If left untreated, benign cysts can lead to a range of serious complications, including blood poisoning. Surgical removal is the most common treatment.