Narrowband

Narrowband means using a very small amount of space to send or receive information, like talking on a toy walkie-talkie that only works within a short distance. It's like using a straw to drink compared to using a wide cup.

When we send information, we use different frequencies or channels to transport it. Narrowband means using only a very small range of frequencies or channels to send or receive information, which makes it more reliable and secure because only a specific device can access it.

For example, when we use a mobile phone, we use a narrowband network to make telephone calls or send short messages. This means only our device can access these channels, making it more secure and reliable.

Overall, narrowband technology is useful for sending small amounts of data over a short distance and for devices that need to work with minimal interference.