I am guessing that it is an operating system?

19. Can it add? Yes.
18. Would you give it as a gift? Maybe.
17. Is some part of it made of glass? No.
16. Do you use it at work? Sometimes.
15. Can it be stolen? Yes.
14. Is it made out of wood? No.
13. Is it comforting? Sometimes.
12. Can you play with it? Yes.
11. Does it have cash value? Yes.
10. Does it make sound? Sometimes.
9. Does it move? No.
8. Could it be found in a classroom? Maybe.
7. Does it make noise? Sometimes.
6. Can you find it in a house? Sometimes.
5. Can you hold it? No.
4. Does it have writing on it? Irrelevant.
3. Is it smaller than a loaf of bread? No.
2. Is it pleasurable? Yes.
1. It is classified as Other.