The User Interfaces on the Operating Systems of the 1950s

question 15

True/False

The user interfaces on the operating systems of the 1950s, 1960s, and 1970s were command languages, requiring text entry . _________________________

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Definitions:

Fixed Costs

Expenses that do not change in total regardless of changes in the volume of goods or services produced or sold.

Variable Costs

Costs that change in proportion to the level of production or business activity, such as raw materials and direct labor costs.

Variable Cost

Spending that rises and falls according to how much is produced or sold, including costs for labor and materials.

Fixed Costs

Expenses that do not vary with the volume of production or sales, such as rent, salaries, and insurance.