Question

Could you tell me what a hub is and what are its functions?

Answer 1

To connect multiple users 
Functions: with the help of wifi we can able to connect more devices to internet but in desktop the wifi connection cannot found. So to connect more desktops to internet, the hub is necessary. 

 Thank you. 

Answer 2

Answer-

Hub:

Hub is a very important component of a computer network.

It is a physical device which directs the electrical data signals towards all other devices which have been connected.

Functions of hub:

1. A hub uses a mode of communication where a device can either send or receive data but this can't be done at the same time.

2. A central hub is used to connect all the other networking devices present in a network.

3. A type of hub called an Ethernet or LAN technology hub is often used to connect several Ethernet devices so that a single networking unit can be created.

Drawbacks of Hub:

1. The transmission speed is low.

2. The data can't be transferred at its appropriate destination.

Figure showing hub:

The following pic is of a hub.