Sunday, 17 August 2014

Day Computing: check the computer history and its evolution

Computer Day is celebrated on 15 August, and despite the fact that computers are now part of our daily lives, and this fact is very modern. Decades ago, and calculators were just enormous, which occupied entire rooms. The processing capacity was nonexistent compared to what we have today in the tools we carry in the pocket. To celebrate,

Music players have over a century of history; see evolution

The beginning of everything
Like any invention, the first computer had its origin in something preexisting and already brought you some concepts developed by experts years before. While Alan Turing is known for his pioneering work in computer science or programming itself, was the mechanical engineer Charles Babbage invented the first mechanical computer equipment considered, even in the nineteenth century.


1940 - First generation




Only in the 1940s that the rudimentary mechanical computers give way from time to general purpose computers, which have used simple algorithms to punch cards and deliver results to their operators of complex calculations. In this context, the foundation of HP is a milestone, presenting its popular Audio Oscillator HP200A, equipment used in the movie industry by Disney to produce sound effects.
The so-called "First Generation" of computers still goes through inventions such as the Harvard Mark I, in 1944, used by the Nazis in World War II. Besides the SSEC, launched in 1948 by IBM, able to calculate the position of the moon using electronic selective sequence - the machine is famous for having been used to trace the route of the Apollo in 1969.


1950 - Transistors





The "Second Generation" of computers emerged in the 1950s and was to mark the arrival of the transistors. With new technology, the computer finally devised by Alan Turing could be built and marketed - the highlight was the UNIVAC 1101, an equipment of 12 m long and 6.1 m wide which used 2700 vacuum tubes for your logic circuits.
The machine considered advanced at the time, had 38 instructions and a kind of equivalent to 48-bit memory. Later, after the release of a series of electronic computers in the United States, England and Japan, IBM launches the IBM Stretch, the first series of transistorized mainframes company.


1960 - Microprocessors



Something like the "Golden Era" of computers, the 1960s brought to market the first microprocessors. The list begins with the DEC PDP-1, the precursor of the Third Generation, and passes through the CDC 6600, the fastest of the season and three times faster than the IBM Stretch - he could accomplish more than 3 million instructions per second.
It was in 1965 that the computer finally came out of the great halls and became portable. The first microcomputer sold successfully in the market was the DEC PDP-8, 12-bit computer whose size resembled a fridge today. The manufacturer Digital Equipment Corporation - hence the acronym DEC - sold over 50 million units that year.

1970 - Microcomputers
Thanks to the pioneering spirit of the DEC PDP-8, the Fourth Generation of computers in the 1970s, is known for the avalanche of personal computers, starting at 1 Kenback, announced in the journal Sicentific American in 1971 and cost $ 7000. Three years later, Xerox launched the first personal workstation microprocessor-based, and that had to mouse input, the Scelbi SH.
It was in that decade, in 1976 that came the first computer with vector processing of commercial success, built by Steve Wozniak. Cray I initially called, was renamed to Apple I with the founding of the company after the entry of Steve Jobs - the following year, the Apple II was an instant success.

1980 - Fifth Generation



With the popularity of microprocessors, the 1980s was marked by personal computers, IBM, Compaq and Commodore joining Apple in this market, which led to a series of innovations. It was in 1984, for example, that the company Jobs lassoed the Macintosh, the first computer with GUI sold commercially.
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The decade also had the first personal computer to incorporate a hard drive to optical storage and object-oriented language to simplify programming. Interestingly, the "father" of the project was also Steve Jobs, but at NeXT, the company he founded after his temporary departure from Apple in 1985.


1990 - Personal Computers



It was in the 1990s that personal computers have become mass product. Intel entered the market with its Pentium processor in 1993, followed by the Pentium II in 1997 AMD also released its first Athlon market in 1998, which ran at 750 MHz amazing. 
The decade is also known for game consoles with microprocessors such as Playstation, released by Sony in 1995 At the end of the decade, Apple introduced its first iMac computer that united all components to monitor, resulting in an extremely compact product the time - was the first All-in-One. 
2000 - Mobile Computing


It may seem late for many, but the 2000s are now history. 12 years ago, the Canadian RIM launched the world's first smartphone called the Blackberry. The player offered to e-mail and web browsing systems, and mobile connection. But, despite all the major releases of the decade, it will be marked by the emergence of the iPhone. 
In 2007, Steve Jobs introduced the device in an historic keynote during WWDC that year. It was the first smartphone with capacitive touchscreen and advanced operating system capable of running complex applications such as music player with animations. Also enter this decade the launch of the iPad in 2010, responsible for the creation of an entire industry of tablets, like the iPhone did to the smartphone.

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