A flat fee, also referred to as a flat rate or a linear rate, refers to a pricing structure that charges a single fixed fee for a service, regardless of usage.[1] Less commonly, the term may refer to a rate that does not vary with usage or time of use.
Synchronous: interrupt occurs as a result of current process, otherwise asynchronous. User requested: interrupt occurs because of direct result by user task, otherwise coerced. Maskable: if desired the interrupt can be disabled by a user task, otherwise unmasked.
Short for remote direct memory access (DMA), a communications technique that allows data to be transmitted from the memory of one computer to the memory of another computer without passing through either devices CPU, without needing extensive buffering, and without calling to an operating system kernel.