Answer the question according to the text below.
There are many different types of telephone. Landline phones, mobile or cell phone and smartphone. A landline phone can work with a cable connected to a central operator. You can not use it without a cable.
A telephone that can be carried around is called a mobile phone or cell phone. These became popular in the late 1980s. It has become common for people to carry mobile phones. Mobile phones are able to make telephone calls using communications satellites instead of cables on the ground. That means people can make calls from anywhere in the world.
Nowadays the majority of people use smartphones which can be used like a computer, too. Smartphone is also a mobile phone or a cell phone but it’s more developed one.
Smartphones - - - -