An eBook is a book in digital format.
It consists of text and images.
You can read it on a PC screen or other electronic device.
A blog is like a diary entry on the internet.
It is public and can be read by anyone.
The bandwidth determines:
How much data is transferred over an internet connection in a given time.
Back-up means saving data.
For example, on a cloud or on an external hard drive.
A bot is a computer programme.
It performs tasks automatically.