COMPUTER HISTORY

History of computers has been started since the days of yore. Since time immemorial, the data processing has been done by humans. Humans also find mechanical appliances and electronics to help human beings in the calculation and data processing in order to achieve results faster. Computers that we meet today is a long evolution of human inventions since time immemorial in the form of mechanical or electronic devices

Today computers and supporting devices have been included in every aspect of life and work. Existing computers now have a greater ability than ordinary mathematical calculations. Among them are computer systems in gauze supermarket shopping goods is able to read the code, telephone exchange that handles millions of calls and communications, computer networks and the Internet that connects various places in the world.


History of Computer by periods is:

* Tools and Calculators Calculate Traditional Mechanics

* First Generation Computers

* Second Generation Computers

* Third Generation Computers

* Fourth Generation Computers

* Fifth Generation Computer



TRADITIONAL calculators and CALCULATOR MEKANIKAbacus, which appeared about 5000 years ago in Asia Minor and is still used in some places up to now can be regarded as the beginning of this komputasi.Alat engine allows users to perform calculations using the sliding grains arranged in a shelf. The merchants in those days, using abacus to calculate the trade transaction. Along with the emergence of a pencil and paper, especially in Europe, the abacus lost its popularity


After almost 12 centuries, came another invention in terms of computing machines. In 1642, Blaise Pascal (1623-1662), who was then 18 years old, found what he called a numerical wheel calculator (numerical wheel calculator) to help his father make tax calculations


This brass rectangular box called the Pascaline, used eight serrated wheel to add up numbers to eight digits. This tool is a calculator tool based on the number ten. The weakness of this tool is only limited to the sum


Year 1694, a German mathematician and philosopher, Gottfred Wilhem von Leibniz (1646-1716) to improve the Pascaline by making machines that can multiply. Just like its predecessor, this mechanical device works by using the serrated wheels. By studying the notes and drawings made by Pascal, Leibniz was able to refine their equipment.


It was only in 1820, mechanical calculators became popular. Charles Xavier Thomas de Colmar find a machine that can perform four basic arithmetic functions. Colmar mechanical calculator, arithometer, presenting a more practical approach in the calculation because the tool can perform summation, subtraction, multiplication, and division. With his ability, arithometer widely used until World War I. Together with Pascal and Leibniz, Colmar helped build a mechanical computing era.