Bing found the following results
Computer network - Wikipedia
What Is Computer Networking? - Cisco
Computer network | Definition & Types | Britannica
What Is Networking? | IBM
Computer networks (article) | The Internet | Khan Academy
What is Computer Networking? - Networking in Computers …
What is a Computer Network? | Definition from TechTarget
What Is a Computer Network? - Codecademy
The Bits and Bytes of Computer Networking Course by Google
An Introduction to Computer Networks - Second Edition