..YUNITA ETRI..

The word "computer" first in to the public in 1613, this refers to the arithmetic calculations and the word "computer" used in the sense that until the mid-20th century. From the late 19th century and finally the meaning of computer into a computing machine.
History of the modern computer begins with two separate technologies-automatic calculation and can be in the program, but no single device that can be said even as the computer, because some of the inconsistent application of the term. Examples of early mechanical calculating devices included the abacus (which comes from approximately 150-100 BC). A hero of Alexandria (about 10-70 AD) built a mechanical theater which was held to play lasts 10 minutes and operated by a complex system of ropes and drums which are used as a means to decide part of the mechanism. This is the essence of programmability.
one of the figures who have influenced the development of modern computing is John von Neumann (1903-1957), he was a scientist who laid the foundations modern.Von Neumann computer has become the great scientists of the 21st century. Von Neumann gave a variety of contributions in the fields of mathematics, quantum theory, game theory, nuclear physics, and computer science are channeled through their works. He also is one of the scientists involved in the manufacture of atomic bombs at Los Alamos during World War II past.
A brief history of the life journey of Von Neumann, was born in Budapest, Hungary on December 28, 1903 by Janos Neumann name. He was the first child of the couple Neumann Miksa and Kann family Margit.Nama placed in front of the original name. So in English, the name his parents became Max Neumann. At Max Neumann holds, then the name was changed to Von Neumann. After a doctorate in legal studies, he became a lawyer for a bank. In 1903, Budapest is the cradle of human genius of science, writers, artists and musicians.
Von Neumann studied various places and some place in Berlin and Zurich. In that place he earned a diploma in chemical engineering in 1926. In the same year he earned a doctorate in mathematics from the University of Budapest. Von Neumann's expertise lies in the field of game theory that gave birth to the concept of cellular automata, the atomic bomb technology, and modern computing who later gave birth to the computer. His genius in the field of mathematics has seen little since to be able to disburse the eight-digit numbers (figures) in the head.
He has taught in Berlin and Hamburg, Von Neumann moved to America in 1930 and worked at Princeton University at the same time Von Neumann became co-founder of the Institute for Advanced Studies.


Von Neumann was very interested in the settlement of hydrodynamics and the difficulty of nonlinear partial differential equations are used, Von Neumann and then shift in the computing field. Von Neumann was a consultant on the development of ENIAC computer, he designed the concept of computer architecture which is still used today. Von Nuemann architecture is a set of computers with stored programs (programs and data stored in memory) with the central controller, I / O, and memory.
Here are some examples of modern computing until the birth of ENIAC:
• Konrad Zuse's electromechanical "Z machines". Z3 (1941), a first machine displays the binary arithmetic, including floating point arithmetic and the size of programmability. In 1998, the Z3, the world's first operational computer was regarded as Turing complete.
• Next Non-programmable Atanasoff-Berry Computer, discovered in 1941 in this device using vacuum tube based computation, binary numbers, and regenerative regenerative memory kapasitor.Penggunaan memory is allowed to become much more uniform (size large table or desk).
• Furthermore Colossus computer was invented in 1943, capable of limiting the ability of the program on this device indicates that the device using thousands of tubes could be used better and this reprogrammable.Komputer electronics used to decode the German war.
• The Harvard Mark I found in 1944, has a large scale, an electromechanical computer to the limited programmability.
• So was born the U.S. Army's Ballistic Research Laboratory ENIAC was invented in 1946, the computer is used fatherly calculate decimal arithmetic and is usually called general purpose first electronic computer (ENIAC was successively a generation that has been highly developed in her time since the first computer Konrad Zuse 's Z3 found 1941).

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