Adriaan "Aad" van Wijngaarden (2 November 1916 – 7 February 1987) was a Dutch mathematician and computer scientist, who is considered by many to have been the founding father of informatica (computer science) in the Netherlands.
Arra or ARRA may refer to.
Bram Jan Loopstra (1925 – 1979) was a Dutch computing pioneer who worked at the Mathematisch Centrum, Amsterdam and then at Electrologica with Adriaan van Wijngaarden, Carel S. Scholten and Gerrit Blaauw.
Carel S. Scholten (Amsterdam, 1925 – 2009) was a physicist and a pioneer of computing.
Gerrit Anne (Gerry) Blaauw (July 17, 1924 - March 21, 2018) was a Dutch computer scientist, known as one of the principal designers of the IBM System/360 line of computers, together with Fred Brooks, Gene Amdahl, and others.
The IBM Automatic Sequence Controlled Calculator (ASCC), called Mark I by Harvard University’s staff, was a general purpose electromechanical computer that was used in the war effort during the last part of World War II.
A mechanical computer is built from mechanical components such as levers and gears, rather than electronic components.
A relay is an electrically operated switch.
In computing, a word is the natural unit of data used by a particular processor design.
The ZEBRA (Zeer Eenvoudige Binaire Reken Automaat translated Very Simple Binary Automatic Calculator) was one of the first computers to be designed in the Netherlands, (the first one was the "ARRA") and one of the first Dutch computers to be commercially available.