Information Displays Idigraf

The terminal was a dynamic refresh vector graphics terminal introduced in May, 1973 at a price of $7,000.

Features:
 * buffered, refresh vector display
 * stroke-writing hardware character and vector generators
 * MOS refresh memory
 * two intensity levels
 * blink attribute
 * two character sizes
 * options:
 * multiple monochromatic or color displays
 * light pen
 * direct parallel or serial interface