In Australia, children undergo twelve years of formal education (plus Preschool, Kindergarten and/or a preparatory grade or Prep), usually starting at age four, five or six, and finishing at age 16, 17 or 18. The Years are numbered from 1 to 12.
Modular PSUs are also referred to as Full(y) Modular, and semi-modular ones are usually just called Modular. Sometimes you get less cables than your modular PSU can accept, Enermax (for example) love doing this.
RTU (Remote Terminal Unit) and PLC (Programmable Logic Controller) devices located at remote field sites, as well as other subordinate servers typically act as slaves. Is the master or heart of an ICS and typically located at the operator's central control facility.