IBM
- 1997 cohort · StorageIBM Deskstar 18GP hard disk familyStorage · IBM · 1997 research cohort
- 1998 cohort · StorageIBM Deskstar 22GXP hard diskStorage · IBM · 1998 research cohort
- 1998 cohort · StorageIBM Deskstar 25GP hard diskStorage · IBM · 1998 research cohort
- 1997 cohort · StorageIBM Deskstar 8 hard disk familyStorage · IBM · 1997 research cohort