did I correct this before? sorry if I did.

well the seat would be vacant-- but I sincerely doubt if any computer would be.

MAYBE Most computers are not in use at the moment. OR: Most of the computers appear to be available to use.

I wouldn't worry about it too much. I've heard plenty of people say "Vacant computer" before, mostly at libraries and such. It may not be the best word to use, but the meaning is clearly understood when the person is looking for a computer to use. To reiterate the previous post, "Available" or even "Unoccupied" are probably better choices.

do they really say that a computer is Vacant? It seems really strange to me.

Vacant means space empty space so how can a computer be literally vacant

It wouldn't be much use if it really was vacant would it?.

The usual meaning is that the space in front of the computer is vacant, I guess. I've heard it before as well.

I think I will write a story about the vacant computer LOL. I guess it's the way we misuse our language.

The net auction is over-run with crimes.
For example, the bad people try to sell hundreds of the vacant computers, which is just a box of computer-shape.

When I went to the furniture store to buy a TV stand, I found a lot of TV stands there. And a vacant TV set is placed on each stand.

Is this the kind of story?

(Of course, I've got the plural opinions of vacant-computer-is-OK-to-be-used-in-our-actual-colloquial-conversations.)

Hi, wolfrainvn, I think your description is far much better than mine.

BTW,
It is not a matter of English language practice, but I found one big difference.
You thought the child in the left was a girl, while I thought he was a boy.

I first thought that it might be his first-love to his teacher, because he didn't see the computer screen, but stared at her.
But I denied the thought myself, because another child (girl) too was staring at her...

Now when I look at the child again, I can't identify his/her gender.

Anyway, thank you for your description. I've learnt a lot from you.
I will be much appreciated, if you provide me your description from now on, if it is allowed.

No.17 A computer class
 

A computer class / TOEIC

Four people are sitting at a table, and there are four TV screens in front of them. They're seriously taking notes. I think this is a lesson or lecture using TV screen.

The title is "a computer class", which I think is wrong.
Because if they are computer screens, where are the keyboards, the mice (mouses?) and the computers themselves?

The touch panel system?
All-in-one type?
It may be possible, but less likely, I think.
Because such kind of computer is very special type. I don't even know if such type really exists. A computer lesson should use a popular type computer, in order to make the lesson effective to the majority of people.

And if it is a computer class, two glasses of water are very, very bad manner.
Computers hate water, because fluid is fatal for them.

A complete water-proof type?
No kidding!

HI Superman, I wonder if they are controlled by remote control. It certainly seems important as they are busy writing notes.

Maybe office workers or other students will be familiar with these? I do not know at all.