dataverkkojen
Dataverkkojen (data networks) are systems of interconnected communication links and devices that enable the exchange of data between computers, sensors, and other digital endpoints. They can be classified by geographic scope as local area networks (LANs), wide area networks (WANs), metropolitan area networks (MANs), or personal area networks (PANs); networks may be wired, wireless, or a combination of both.
Core technologies include packet switching, routing and switching hardware, and common communication protocols such as TCP/IP,
History and standardization: modern data networks emerged from early research networks in the 1960s and 1970s,
Security and management: networks face risks including eavesdropping, unauthorized access, and disruptions. Protection relies on encryption,
Applications and trends: data networks underpin the Internet, cloud services, corporate intranets, and the expanding Internet