| Clue | Source | Date |
|---|---|---|
| Good memories | Wall Street Journal | 02 Nov 2019 |
| Good memories | ||
| Data center stats | Newsday | 09 Aug 2018 |
| Factory's working hours | ||
| Busy periods | ||
| When computers are working | ||
| Booms | ||
| Operating periods | ||
| Periods when the computers work | ||
| Computers' working hours |