NETWORK BASIC	NETWORK TOPOLOGY	NETWORK ARCHITECTURE
NETWORK : is a collection of computer and mobile devices connected together via communication devices and transmission media , often wirelessly allowing computer to share resources .	COMMUNICATION DEVICES : hardware component that enables computer to send  (transmit) and receive data , instruction , and information to and from one or more computers.	TRANSMISSSION MEDIA : the material or sub substance capable of carrying one or more signal .
COMMUNICATION DEVICES- hub/switch modem wireless access point router hub switch netword card repeater	TRANSMISSION MEDIA- twisted pair cable-infrared coaxial cable-microwave fiber optic-cellular radio,broadcast radio , communication satellite, bluetooth