Hello,
I have some questions:

1- A cryptocurrency like TRON or EOS is like an operating system that lets developers to make their programs on it? For example, TRON is like the Windows or GNU/Linux OS and developers can make their applications on it.
Am I right?

2- Why are some of these networks sometimes busy? Is it because many programs were running on them at the time?

3- When a cryptocurrency network like the Ethereum become busy, then people switching to the other networks like TRON. Does that mean that applications that running on the Ethereum network changed their network to the TRON network?

4- How a developer can use Ethereum or TRON to making an application?



Thank you.