Understanding Computer Networks Computer networks are systems where computers connect to share resources. The first computer network was the Advanced Research Projects Agency Network (ARPANET). Key characteristics of these networks include speed, communication capabilities, data backup and sharing, as well as software application access.
Types and Advantages of Networks Networks vary in types such as Personal Area Network (PAN), Local Area Network (LAN), Metropolitan Area Network (MAN), and Wide Area Network (WAN). LAN connects computers within a limited area like an office or home. Combining multiple LANs forms larger networks like MAN or WAN. Benefits include resource accessibility for everyone but also come with risks like viruses through internet connections.