Computers, Computer Science The most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs. Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers.

Finance Degree to which a company's costs of operation are fixed as opposed to variable.

Finance Losses that a firm can take advantage of to reduce taxes.

Finance Sequence of events and decisions that create the firm's cash inflows and cash outflows.

Finance Type of lease in which the period of contract is less than the life of the equipment and the lessor pays all the maintenance and servicing.

concernant la pollution causée par certaines substances dangereuses déversées dans le milieu aquatique de la Communauté

Finance Earnings before interest and depreciation minus taxes.

Finance Applying losses to offset earnings in future years.

Finance Applying losses to offset earnings in previous years.

Finance Time interval between the arrival of inventory stock and the date when cash is collected from receivables.