Microprogramming for computer graphics
Andries van Dam · ACM SIGMICRO newsletter/SIGMICRO newsletter/SIGMICRO, TCMICRO newsletter · 1972
Interactive computer graphics (graphics) is the construction, storage, retrieval, manipulation, alteration and analysis of pictorial data, using an on-line display console with manual input (interaction) devices. Among such input devices are the alphanumeric and function keyboards for typing text and activating preprogrammed subroutines respectively, and the light pen and data tablet for identifying and entering graphic data by means of pointing and drawing.