189597dc_cholars____Hipertext_____UPF____Off_line
[Characteristics] Data storage [Online] A web server's hard drive, accessible from any browser and by various users. A user hard drive if desired. [Off-line] 
On a hard drive on a specific computer only accessible locally ("one at a time")
Science 2.0: Social networks and online applications for scholars. - Hipertext - ( UPF )
Off-line