What is this?
a computer
What is this?
a TV/television
What is this?
a camera
What is this?
the internet
What is this?
a mouse
What is this?
a screen
What is this?
a video
What is this?
a tablet
What is this?
an e-mail
What is this?
a button
What is this?
an e-book
What are these?
apps
What is this?
an mp3 player
What is this?
a keyboard
What is this?
a mobile phone/cellphone/smartphone