Universal Hardware Representation

To minimize the number of translators needed to map any facility's user codes to any other facility, there is a universal hardware representation.

This is simply a way of talking, in general terms, about all the hardware devices at all the interactive display stations in the initial network.

For example, a display is thought of as being a square, the mid-point has coordinates (0.0), the range is -1 to 1 on both axes. A point may now be specified to any accuracy, regardless of the particular number of density of rastor points on a display.

The representation is discussed in the semantic explanations accompanying the formal description of DEL.