This page reports on the population distribution in North Sioux City, both in terms of raw head counts, and in terms of population density per square mile. Population: count of all residents of the given entity at the time of the survey, excluding visitors
RSA (algorithm) RSA is an algorithm used by modern computers to encrypt and decrypt messages. It is an asymmetric cryptographic algorithm. Asymmetric means that there are two different keys. This is also called public key cryptography, because one of them can be given to everyone. The other key must be kept private.
RMA stands for Return Merchandise Authorization. It's a way for the company to be able to know why the item is being returned and arrange for proper shipping of the own back to them. Many companies have customers ship the items back to then I'd the customer wants a refund or replacement.