What does JOSS stand for?

Job Sharing System (SAUS)

JOHNNIAC - John's Integrator and Automatic Computer Open Shop System - Time-sharing language - Rand Corp. - 1962 - Computer science

Joint Object Services Submission (SAUO)

Joint Ocean Surface Study

Joint Office for Science Support (SAUO)

Joint Overseas Switchboard (SAUS)

Joint Overseas Switchboard Switch (SAUO)

Joint Overseas Switching System - Military (AABC)