what is a router.......?

Router is a tool that is like an intermediary, so the router is useful to connect multiple networks, be it the same network or different network in terms of technology because different tools such as bus, star, or ring topology.

Router Type in Computer Network
Types of routers in a computer network are generally divided into 2 types:

1. Static routers are routers that are manually set by the administrator to have a static routing table
2. Dynamic routers are routers that have and create dynamic routing tables by viewing the signal of network traffic and connecting with other routers.