Match each unit with its basic function. One function is extra.Example: 0 CellsAnswer: communication via mobile data
Skype
пустоproviding an access to the information
Amazon
пустоdiversity of videos
Facebook
пустоe‑commerce
Windows
пустоworking with texts
YouTube
пустоsocial networking
Application
пустоvideo conferencing
Microsoft Word
пустоoperating system
Flash drive
пустоtransferring files from one computer to another