Collaboration, a term usurped and mangled by marketing groups everywhere, ultimately means working together. Since the P in PC means “personal,” working together can be tough. But online services like HyperOffice make it simple for groups to quickly and inexpensively share calendars, files, task lists, contacts and more.
source:
https://www.networkworld.com/article/2310976/computers/online-collaboration-tools.html?page=1