Abstract: For transmission of data from the computer to the peripheral, the computer initially clears a flipflop which provides a select signal to a multiplexer. When the computer is ready to provide data to the peripheral, it produces a data available signal or data strobe signal while the data is being provided to the interface. Setting of the flipflop causes a gate connected thereto to provide to the peripheral a signal indicating that the interface has data available for transmission thereto. In response thereto, the peripheral provides an acknowledge or strobe signal to transfer the data to the peripheral. This acknowledge signal is also provided to the gate to shut off the signal being provided to the peripheral. Setting of the flipflop also causes the multiplexer to change state so that it now can multiplex the acknowledge signal to the pulse generator. The pulse generator then resets the flipflop, so that it is now ready for transmission of more data from the computer to the peripheral.