how big is a quantum computer

Question: how big is a quantum computer
- Keywords:
  computer,
  quantum,
  size
Asked by anon-198272 to Gautam on 13 Mar 2019.
- Gautam Kambhampati answered on 13 Mar 2019:
  
  Right now they’re really big — about the size of a room. This is because they need so much extra equipment to make them work, like vacuum pumps (basically like small jet engines) and liquid nitrogen to cool everything down. But the actual working part of the computer is really really tiny, smaller than the DNA in your cells.

Question: how big is a quantum computer