stores of data that are so vast that conventional database management systems cannot handle them

Big data

Explanation: Big data refers to an aspect of data analytics which proffers systematic ways to store, manipulate, analyze and work with large or vast amount of data or high complexity that cannot be handled by conventional management systems or traditional data processing softwares. Hence, sophisticated management systems and processing softwares coupled with high level computing hardwares are employed for it's processing. They are of immense importance in areas of enhancing Artificial intelligence and machine learning products and technologies, market research and forecasting, exploration, business, science and technology and so on.

they really not common the os x is just a better version of the os like in iphone theirs xr and their xs

you can not change you age soon as you signed up. the only way is too delete your account and use another account to sign up and put your correct age.