What Is a SIC Code? Standard Industrial Classification (SIC) codes are four-digit numerical codes used to categorize U.S. companies by the industries in which they operate. Companies are required ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Khadija Khartit is a strategy, investment, and funding expert, and an educator of fintech ...

Everyone already uses computers in physics. At the very least, students use handheld calculators (I doubt anyone is still using a slide-rule calculator). Also, it's becoming more common to have ...

Pro tip: You can also use the Custom Numeric Code option to set a long all-number code. This may be a bit less secure but more convenient. Plus, you still get the use the easy numerical keypad.

Activity codes are optional four digit numerical codes in FAS that may be used to define the activities of a unit in more detail than is available through the account codes.