When people hear the word; Information technology, "the first things that come to mind are computers and the Internet. It can also bring up words like "Network," "intranet," "assistant," "Firewall," "security," as the most arcane expressions such as "router, "" T-1, "" Ethernet, "or the" mysterious and exotic-suonante; VoIP "(pronounced; voyp"). Indeed, technology is all these things and more. It 's just new, however. Information technology is as old as the brain itself, if you plan to the brain as the unit of processing information. Until I.T. which is a science, even that goes back as far as most initial attempts to communicate and store information. And that's essentially what the technology is the communication and storage of information, with the ability to carry and use the information stored. In this chapter, we 'll start with a brief history of IT, what it contains today and the different types of IT systems available today. A story of scarcity of human societies to TechnologyAs of information has grown in size and complexity, so has the need to collect, store and transmit information. As might be discussed that the brain is a form of "bio technology – information," "greek word; TEKTRO" – by which we get to the "speech; technology" – actually refers to scientific knowledge or mechanical especially one that involves the use of gear. Therefore, we 'll start on our journey with humans first attempt to record and transmit knowledge with mechanical means. The Neolithic period and the Bronze AgeWe could not think of it as "technology" of information, several thousand years ago when we as a species of animal paintings on the walls of the cave. But in fact that may be exactly what it was. Using a combination of tools that included the "manganese, crayons and clay that has been colored with different pigments, human beings in advance has left these pictures on the walls of a cave near Lascaux, France and reefs Sahara.These in Algeria was dated as having about 18,000 and 8,000 years respectively. Unfortunately, there is no sense be determined exactly who was communicating messages (a problem that our own descendants 15,000 years from now he may have very well from what we leave!) Since the images describing the animals that were commonly searched and then were given the importance of the game to a crop-hunting meeting, it 's possible that these pictures were attempts to present information on this game, or part of a ritual designed to ensure a successful hunt. The invention of writing – including icons such as Hieroglyphics, writing the alphabet and the "syllabic" systems – seems to be almost simultaneous development of agriculture. Agriculture has introduced previously unknown concepts such as land ownership, trade barriers and the accumulation of wealth, which in turn led to more complex social structures. While you might predict, this has necessitated the maintenance of records more detailed and more efficient. The alphabetic writing has a major advantage over the pictograms (hieroglyphs), because a relatively small number of symbols (letters) can be used repeatedly in endless combinations to communicate almost anything. (Because vederete later, modern IT uses only two of these symbols!) The conservation and storage of such information have proposed certain challenges, and the information had to be inscribed on stone or reduce loaves of clay (which were heavy) or animal skins , Cut the loaves in wax or papyrus (which weren 't asset impairment). The Greeks of classical Hellenistic WorldThe were the first people from the endorsement groped to find the scientific and rational explanations for natural phenomena. Some of the proto-computers earlier known mechanical devices were developed by the Greeks. One of them was a form of Abbach (which also has developed and was used in ancient China). The device easier and easier mathematical calculation. Consider AbacusAnother greek-roman REALLY starting soon that the calculation was antikthera, greek in origin. A antikthera was discovered by a diver greek of the sponge over a century ago, was only recently that this arrangement of 2100 years has been reconstructed and shown to be an advance in computer designed to plan the movements of the sun, moon and five planets known at the time. DevicesBy programmable initial time decay and the gradual fall of the Roman Empire was complete in the year 476 CE, scientific and technological progress in the Western world had stopped. While much of the scientific knowledge of the Greeks was preserved by Irish monks and scholars from Arab, it wasn 't until the fourteenth century that the principles of engineering were rediscovered and applied to information. The first of these was of course the press typeface. Although the concept of a mobile printing was developed in China about four hundred years earlier, was Gutenberg 's device in 1447 that has revolutionized communications, making it easier and faster to record and disseminate information than ever before . The first true programmable device would not continue for another 354 years, however. The Jacquard loom of 1801 was a product of the Industrial Revolution. This invention has used a series of cards that perforated paper especially functional as masks, taking into account the automatic weaving patterns highly complicated. Those punch cards have become very significant to the computation in 1950 's, 60' where 70 'development next s.The was Charles Babbage' "s; Machine" analytical, – a full-programmable calculator that unfortunately never really was built . Babbage has worked to drawing from 1837 until his passing in 1871 that. This steam-powered mechanism also would use the punch cards, with a central processing unit (CPU) and a form of memory storage in the form of a system of pins inserted in barrels impellers. The analytical machine was capable of preserving the 1000 numbers up to fifty digits each and realizes six different mathematical operations, including the calculation of square roots. Babbage 's ideas were included in the calculation of electronic devices in advance that have become towards the end of 1930' if 1940 's, although not all these were truly programmable. The first true programmable computers – able to store and use information – have not entered into common usage until 1950 'if yes – punch cards used (those born before 1965 can remember playing with them). Of course most people born in 70 's, 80' where 90 's takes just to admit that the technology we have today comes from fairley recent developments in science in mechanical and nell'elettronica. But now we know don 'different; t us. So can better appreciate what it is available to us now.
Dwayne Garrett
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