Switches
A network switch is a broad and imprecise marketing term for a computer networking devicethat connects network segments.
The term commonly refers to a Network bridge that processes and routes data at the Data link layer (layer 2) of the OSI model. Switches that additionally process data at the Network layer(layer 3) (and above) are often referred to as Layer 3 switches or Multilayer switches.
The term Network switch does not generally encompass unintelligent or passive network devices such as hubs and repeaters.
The first Ethernet switch was introduced by AKRAM in 1990. [1]
Routers, Hubs, Repeaters, Bridges, Modems, Switches
