Computer Network

Communication
Communication is about the transfer of information from a sender, across a distance to a receiver. It using electricity, radio wave or light, information and data in the form of code are transmitted physical such as wire cable. Its transmitted can be in text, voice, sound, video, graphic and image or a combination of all this, which we call multimedia. The transmit information or data using 2 type of signal namely analog and digital. Example, teleohone use analog an computer use digital.

Modem

Modem is a short for modulator or demolator , that convert digital signal into analog signal and back again into digital signal for information across telephone line.

Connection of Networking
Connection of Networking is a set of rule, it called protocols, like TCP/IP

3 Type of Network
LAN – local area net work
MAN – metropolitan area network
WAN – wide area network

WIRELESS Networking is use WiFi.