For works about first contact between specific groups, additional subject headings are assigned of the type [Ethnic group]--First contact with other peoples, e.g., 1. Europeans--First contact with other peoples; 2. Wyandot Indians--First contact with other peoples.
Here are entered works on the connections or links between two or more computer systems or devices. Works on the point at which a user interacts with a computer system, either directly through a terminal or indirectly through a data processing department, are entered under User interfaces (Computer systems).
Here are entered works on the point at which a user interacts with a computer system, either directly through a terminal or indirectly through a data processing department. Works on the connections or links between two or more computer systems or devices are entered under Computer interfaces.