Uma placa de hardware, tal como placa de video, placa de som ou placa de rede, por exemplo, que fica dentro da placa mae e nao pode ser retirada e uma?

Johnson enterprises uses a computer to handle its sales invoices. lately, business has been so good that it takes an extra 3 hours per night, plus every third saturday, to keep up with the volume of sales invoices. management is considering updating its computer with a faster model that would eliminate all of the overtime processing.