A router connects multiple computers together and transmits data to its correct destination on a network.
router
a hub
A complex machine is a mechanical device that consists of multiple simple machines working together to perform a more complex task. Examples include cars, computers, and robots.
Switch networking is a term used to describe a small hardware device that joins multiple computers together by using a low level network protocol level.
A shared device is a computing or electronic device that is used by multiple individuals. These devices are typically found in public spaces, offices, or households where multiple people need access to the same technology. Examples include shared computers in libraries, tablets in schools, or smart TVs in common areas.
keyboard
A switch is typically used to connect multiple computers in a single residential unit to a modem.
This is the definition of a computer network. Devices such as routers and bridges create logical network subnets and network domains that computers, printers, and other devices can connect with to join the network.
Server
A KVM switch, or Keyboard, Video and Mouse switch, is a type of hardware device that allows multiple input devices to be shared between multiple computers, thus allowing control of multiple computers. Although it is usually multiple computers that are connected to the KVM, typically only a small number is controlled at any time. They are often used between different OSes, when a person has switched to a new OS and plans to continue using their original OS.
The hub is a device for connecting multiple ethernet devices together and making them act as a single network segment.