Will the internet via computers ever be able to emit smell or taste particles

As to complete the total interactive experience.

I think you have a false idea of the internet.

The internet cannot see or hear anything, so there is no reason to assume it will be able to smell or taste.

I't only peripherals such as cameras and mikes that can "see" or "hear", but actually all they can do is convert visuals or sounds to digital numbers that can be sent over the internet. There is nothing on the internet that can interpret that data, except sending them to a screen or speaker that can be seen or heard by a human.

The internet is just a collection of servers and routers to store and route information.

T.V is beginning to be developed. I would imagine they'd try it for the web too