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Software.
Physically ghost cant touch humans and humans cant touch ghost. But ghost can manipulate dead items in order to kill a human.
In computing, hardware refers to items you can physically touch.
items that you cannot physically account for
Tangble is something you can see, touch or feel--others get a full view of these items.....on the other hand the, intangible is not anything you can see, touch or feel It is a concept, an idea, a but nothing that you can physically see
things or items that can be seen or touched are called tangible items or tangible goods. for example books, computer etc. items than can not be seen but you know and you can feel the presence are called intagibles. example for this is love.
Touch them.
Assets which are physical and can be counted e.g inventory , cash , machinery , raw material etc
You get "in touch" with your Guardian Angel through prayer. You cannot physically touch an angel as they are pure spirit.
Hardware
The oils and dirt on your skin stick to items that you touch. This causes fingerprints to form on most items.
Truly 2 dimensional items are theoretical, and as such do not exist. So the simple answer is, no, you cannot touch a 2 dimensional item.