![]() ![]() Sketchpad displayed graphics on the CRT display, and a light pen was used to manipulate the line objects, much like a modern computer mouse. The computer possessed 320 KB (kilobytes) of memory and powered a 23-cm (9-inch) cathode-ray tube (CRT) display. The TX-2 had twice the memory capacity of the largest commercial machines and impressive programmable capabilities. In 1961 Massachusetts Institute of Technology (MIT) graduate student Sutherland developed a primitive application, Sketchpad, that would run on the TX-2, one of the first programmable computers, at MIT’s Lincoln Laboratory. The program allowed users to visualize and control program functions and became a foundation for computer graphics, computer operating system interfaces, and software applications that are used in many facets of modern technology. Sketchpad originated as American engineer Ivan Sutherland’s doctoral thesis project in the early 1960s and was one of the first graphical user interfaces. ![]() Sketchpad, the first interactive computer-graphics program. SpaceNext50 Britannica presents SpaceNext50, From the race to the Moon to space stewardship, we explore a wide range of subjects that feed our curiosity about space!.Learn about the major environmental problems facing our planet and what can be done about them! Saving Earth Britannica Presents Earth’s To-Do List for the 21st Century.Britannica Beyond We’ve created a new place where questions are at the center of learning.100 Women Britannica celebrates the centennial of the Nineteenth Amendment, highlighting suffragists and history-making politicians.COVID-19 Portal While this global health crisis continues to evolve, it can be useful to look to past pandemics to better understand how to respond today.Student Portal Britannica is the ultimate student resource for key school subjects like history, government, literature, and more.This Time in History In these videos, find out what happened this month (or any month!) in history.#WTFact Videos In #WTFact Britannica shares some of the most bizarre facts we can find.Demystified Videos In Demystified, Britannica has all the answers to your burning questions.Britannica Explains In these videos, Britannica explains a variety of topics and answers frequently asked questions. ![]()
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