Answer:
Cloud
Explanation:
Cloud computing is a central form of storing data on a data center, provided online, to provides inexpensive and secure storage facilities and central accessing of document, using any device and accessing the data from anywhere and time.
Data stored in a clients computer system, would have to be transferred to another remote computer by using a portable storage, to share data. Using a cloud service or a database center service, a document can be accessed by a group of users at the same time, in different places, and assures a secure data in the database.