Companies (3)
| Title | Location |
|---|---|
| Communications System Laboratories | 94-165 Leokane St, Waipahu, HI 96797 |
| Detron of Hawaii Inexpensive programs for the ZX80 and ZX81. | 2007 Naio St., Honalulu, HI 96817 |
| ZX80/81 Users Library | 4614 Kilauea Ave., Honolulu. HI 96816 |