A person who controls a machine or system, such as a computer or telephone switchboard.
— Computer ScienceA sign or symbol that specifies the type of calculation to perform within an expression. There are mathematical, comparison, logical, and reference operators.
— Computer ScienceAn element of a filter that specifies a relationship between data values, such as comparison or equality.
— Computer ScienceAn object that processes and enhances items in a content processing flow and processes and enhances queries in a query processing flow.
— Computer Science