Human attempts to develop a tool to manipulate the data back to 2600 BC when the Chinese came with the abacus. The slide rule was evolution of computers invented in 1621 and has remained largely unused until the advent of electronic calculators in the 1970s These two examples of the first devices were mechanical and human scale.
In 1830, the English mathematician Charles Babbage designed an Analytical Engine could be programmed using punched cards to perform evolution of computers the calculations. He was different from his predecessors, and has been able to make decisions based on their own calculations, such as sequential, Branching and Looping. Almost all computers used today follow this basic idea under Babbage, so it is evolution of computers often referred to as "the father of computers." The scanner is so complex that Babbage was never able to build a working model of their design. Finally was built over 100 years later by the London Science Museum.
The first electronic computers
Many different types of mechanical devices evolution of computers that followed is based on the idea that the scan engine. The first electronic computers were developed by Konrad Zuse in Germany in the period 1935-1941 Z3 was the first programmable digital computer work fully automatic. The original was destroyed during World War II, but a replica was built by the Deutsches Museum in Munich. Because their systems evolution of computers implemented many concepts we still use in our modern computers, Zuse is often considered the "inventor of the computer."
Around the same time, the British built the evolution of computers Colossus computer to break the encrypted codes for the German war effort, and the Americans built the Electronic Numerical Integrator Analyzer and Computer, or ENIAC. Built between 1943 and 1945, ENIAC weighed 30 tons and was 100 feet long and eight feet high. Both Colossus and ENIAC were based largely on vacuum tubes, which can act as an electronic switch that can turn on and off a lot faster than mechanical switches, which have been used so far evolution of computers . Computer systems that use vacuum tubes are considered the first generation of computers.
The vacuum tubes, however, consumes large amounts of energy, transforming a computer in an oven. The first semiconductor transistor was invented in 1926, but was only in 1947 that became a solid and reliable transistor for use in evolution of computers . In a similar manner a vacuum tube, a transistor controlling the flow of electricity, but was only a few millimeters in size and generates little heat. Computer systems that use transistors are considered the second generation of computers.
It took a few years for the transistor technology evolution of computers to mature, but in 1954 the company introduced the IBM 650, the first computer produced. Today, computers are still using transistors, but are much smaller. Was made in 1958, can combine several components including transistors, circuits and connect them in a single piece of silicon. This was the first integrated circuit. Computer systems that use integrated evolution of computers circuits are considered as the third generation of computers. Integrated circuits have been computer processors we use today.
PCs
Computers are fast becoming more powerful evolution of computers . Became possible to squeeze all the integrated circuits that are part of a single unit in a single chip called a microprocessor in 1970. Computer systems using microprocessors are considered the evolution of computers fourth generation of computers.
In the early 1970s, computers were being used mainly by large corporations, government agencies and universities. The first device to be called a personal computer was introduced in 1975 Altair 8800 was made by systems Micro Instrumentation evolution of computers and Telemetry. It included an Intel 8080 processor and 256 bytes of memory. There were no keyboard, and instead of the programs and the data was captured using switches. There was no monitor, and instead the results were read by interpreting a pattern of evolution of computers small red lights.
This equipment is mainly used by hobbyists and hackers who evolution of computers take them apart and build their own devices. Two of the pirates, Stephen Wozniak and Steve Jobs created a personal computer in 1976 which had a storage keyboard, screen and disc. They called Apple I. Around the same time, two other hackers, Bill Gates and Paul evolution of computers Allen started developing software for the Altair 8800 and founded Microsoft.
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