Differential analyser

The differential analyzer ( engl.: differential analyzer ) was an electromechanical analog computer that could handle multiple differential equations simultaneously. The issue was made by means of automatically printed graphs. It was developed in the years 1928-1932 at the Massachusetts Institute of Technology (MIT) under the direction of Vannevar Bush and HL Hazen.

Later developed so-called digital differential analyzers ( DDAs ) between the numbers stored in registers. They represented a transitional step between analog calculators and digital computers dar. analogy, certain simple algorithms for rasterization of lines are also called DDA in computer graphics.