Take one minute of video. Look at the file size. Now how many of these 1 minute files can you fit onto an 8GB card in your particular format and camera/device.
SMS stands for Short Message Service, which is the formal name for text messaging. It's a way to send short, text-only messages from one phone to another. These messages are usually sent over a cellular data network. That's not always true, though, as in the case of iMessage below.
Answer Wiki. An SMS short code is a 5-6 digit phone number that is used by businesses to opt-in consumers to their SMS programs, and then used to send text message coupons, offers, promotions, etc. to those customers that had previously opted-in.