Here's a breakdown:

* Devices: These can be computers, phones, servers, printers, or any other electronic device capable of sending and receiving data.

* Transmission Media: This is the physical path that data travels along. Some common examples include:

* Wired media: Ethernet cables, coaxial cables, fiber optic cables

* Wireless media: Radio waves (Wi-Fi, Bluetooth), infrared, satellite signals

Therefore, a network is made up of two or more devices connected by transmission media.