1.   Although the ultimate resolution rests with the output device it is essential that the software can at least provide control over it.

2.   Cheap high-resolution input and output devices will soon ensure the same kind of revolution in the cinema.

3.   It also did away with the need for bias adjustment on the output devices - a most desirable quality.

4.   Suggest instructions to control a set of output devices, and extend your interrupt service routine accordingly.

5.   This procedure sends a byte to the output device.

6.   The cheapest and most readily-available output device is the printer.

7.   Thus an output device is needed to make the user aware of what the microcomputer has done.

8.   The other main output device is a printer which is linked to the microcomputer by an interface.