| Functioning computers | Manufacturing time | Amount of Br (ppm) |
| Lenovo | 2015 | 137.9724 |
| HP DX2400 | 2008 | 8361.3373 |
| HCL 2010 | 2010 | 8564.9352 |
| DELL optiplex GX270 | 2003 | 15,726.006 |
| Acer | 2010 | 9752.2376 |
| DELL India | 2013 | 43.5646 |