- ARPAnet
- California Department of Motor Vehicles
- Central Intelligence Agency (CIA)
- Code division multiple access (CDMA)
- Digital Equipment Corporation
- Digital Equipment's Palo Palo Alto research laboratory
- Draper, John (Captain Crunch)
- EMACS
- Hollywood, California
- Internal Revenue Service
- Las Vegas, Nevada
- Los Angeles, California
- Nissan
- Pacific Bell
- Pentagon
- Phone phreaking
- Sacramento, California
- San Fernando Valley, California
- San Francisco, California
- Santa Cruz Operation
- Stallman, Richard
- Stockton, California
- Thousand Oaks, California
- Three Days of the Condor
- Thunder, Susan
- TRW
- Ultrix operating system
- University of Southern California
- VMS
- War Games