Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
The history of computer from past to present
The history of computer from past to present
Historical development of computers
Don’t take our word for it - see why 10 million students trust us with their essay needs.
Recommended: The history of computer from past to present
Sophistication has advanced as people learnt new ways of developing various physical resources such as materials, forces and energies. The history of computer technology has involved an order of changes of physical understanding, from gears and relays to valves to transistors and integrated circuits and so on. Today's advanced lithographic methods can squeeze portion of micron wide logic gates and buses onto the surface of silicon chips. Soon they will carry even smaller parts and eventually get to a point where logic gates are so minute that they are built out of a handful of atoms.
On the atomic level matter adheres to the rules of quantum mechanics, which are different from the conventional rules that govern the properties of orthodox logic gates. So if computers are built smaller in the future, quantum technology must act as a substitute for or enhance what we have now. Quantum technology can offer much more than shoving more bits to silicon and increasing the clock-speed of microprocessors. It can sustain an entirely new kind of computation with advanced algorithms based on quantum principles.
Quantum computing is a significant section of the new and quickly evolving field of quantum information processing and communication. This field deals with representations and approaches of computing, algorithms, communication procedures, innate complexity considerations, cryptography protocols, and so on, for situations where by quantum objects, and not the traditional ones, are the bearers of information.
Research in quantum information processing has already been conveyed, compared with the traditional case, quicker algorithms for some important algorithmic problems, but not for all such problems; fundamentally new cryptographic ...
... middle of paper ...
...extremely time-consuming on conventional computers.
There are many difficulties, which has to be overcome before we can begin to appreciate the benefits they may provide. Researchers worldwide are competing to be the first to build a applied system, a feat, which some scientists think, is in vain. David Deutsch, one of the scientists in quantum computing said himself, "Perhaps, their most profound effect may prove to be theoretical".
Can we really build a useful quantum computer? Who knows; in a quantum world, anything is possible!
Works Cited
“Quantum Computers.” ewh.ieee.org. ieee, n.d. Web. 7 Nov. 2011.
< http://ewh.ieee.org/r10/bombay/news4/Quantum_Computers.htm>
Gruska, Jozef. “Quantum Computing.” Wiley Encyclopedia of Computer Science and Engineering (2009): 16 Mar. 2009. Web. 12 Nov. 2011.
Smite-Meister. “Bloch_Sphere.” 30 Jan. 2009.
The novel, Alice and Quantum Land, by Robert Gilmore is an adventure in the Quantum universe. Alice, a normal teenage girl, goes through quantum land and understands what quantum is and how it works. The quantum world is a difficult one to understand, as its nature is one of complex states of being, natures, principles, notions, and the like. When these principles or concepts are compared with the macro world, one can find great similarities and even greater dissimilarities between the world wherein electrons rule, and the world wherein human beings live. In Alice in Quantumland, author Robert Gilmore converts the original tale of Alice in Wonderland from a world of anthropomorphic creatures into the minute world of quantum mechanics, and attempts to ease the reader into this confusing world through a series of analogies (which comprise an allegory) about the principles of quantum mechanics. Through Alice’s adventure she comes across some ideas or features that contradict real world ideas. These ideas are the following: Electrons have no distinguishing spin, the Pauli Exclusion Principle, Superposition, Heisenberg Uncertainty Principle, and Interference and Wave Particle Duality.
The study of neurobiology has long involved the actions and interactions among neurons and their synapses. Changes in concentrations of various ions carry impulses to and from the central nervous system and are responsible for all the information processed by the nervous system as a whole. This has been the prominent theory for many years, but, now, there is a new one to be reckoned with; the Quantum Brain Theory (QBT). Like many new theories, the QBT has merits and flaws. Many people are wholeheartedly sold on it; however, this vigor might be uncalled for. Nevertheless, this could prove to be a valid and surprisingly accurate theory of brain function.
This Essay is meant to shed light on a complex subject, quantum entanglement. Now, quantum entanglement is a part of much more complex subjects, such as classical mechanics, quantum theory, and quantum mechanics; these subjects will not be covered. The idea of quantum entanglement will be explained: What it is and when does it happen. After a little understanding of Entanglement, a discussion will follow on what it means for us from a technological standpoint and what can we accomplish in the near future. Pushing that idea further into the future looking at bigger possibilities in transportation, and what potential liabilities and moral dilemmas could ensue. It is my belief that quantum entanglement could accomplish many great things, but could
Quantum Mechanics is a branch of physics that describes the structure and behavior of matter.
"Introduction to Quantum Mechanics." Wikipedia. Wikimedia Foundation, 9 Mar. 2014. Web. 12 Mar. 2014. .
In quantum mechanics the state of physical systems2 can be represented by a vector |Ψ>, in a vector space, V.3 Each measurable property of a system corresponds to an orthonormal basis of V, where each basis vector corresponds to a possible value of the property. The sums and differences of vectors...
Stemming from the first years of the 20th century, quantum mechanics has had a monumental influence on modern science. First explored by Max Planck in the 1900s, Einstein modified and applied much of the research in this field. This begs the question, “how did Einstein contribute to the development and research of quantum mechanics?” Before studying how Einstein’s research contributed to the development of quantum mechanics, it is important to examine the origins of the science itself. Einstein took much of Planck’s experimental “quantum theory” research and applied it in usable ways to existing science. He also greatly contributed to the establishment of the base for quantum mechanics research today. Along with establishing base research in the field, Einstein’s discoveries have been modified and updated to apply to our more advanced understanding of this science today. Einstein greatly contributed to the foundation of quantum mechanics through his research, and his theories and discoveries remain relevant to science even today.
The discovery that we can make photons act strongly together could make developing quantum computers a lot easier. this discovery is the most recent of the five having only happened last year. Normally photons don't interact “Getting photons to stick together is not easy because they normally pass through each other without interacting”(Johnson), but...
The most common refutation to the notion of mental states in digital computers is that there are inherent limits of computation and that there are inabilities that exist in any algorithm to...
In the final analysis, quantum specimens both conceptual, entity, and particles are what sustain human life. Without some time of mystery and amusement humans would never seek to make innovations. Without innovations society would begin to stagnate into a pig sty of rituals. If one society were to collapse, then others would soon follow. This collapse of society is the true Armageddon, the failure of all supernatural quanta to act with normal quanta. Hence the important of quantum physics, it is necessary for life, society, and humanity.
There are still limitations in classical cryptography, it is purely mathematical and information cannot be separated from its physical representation. In Classical physics, we use binary form to store and process the data. In the 1980s, C.Bennet, P.Benioff, R.Feynman and others observed that new and very powerful ways of information processing are possible with quantum mechanical systems. This gave birth to the concept of quantum computing.
In the past few decades, one field of engineering in particular has stood out in terms of development and commercialisation; and that is electronics and computation. In 1965, when Moore’s Law was first established (Gordon E. Moore, 1965: "Cramming more components onto integrated circuits"), it was stated that the number of transistors (an electronic component according to which the processing and memory capabilities of a microchip is measured) would double every 2 years. This prediction held true even when man ushered in the new millennium. We have gone from computers that could perform one calculation in one second to a super-computer (the one at Oak Ridge National Lab) that can perform 1 quadrillion (1015) mathematical calculations per second. Thus, it is only obvious that this field would also have s...
Quantum computing is the first step into all technologies of the future. It involves using electric patterns in the brain to control electronics. A twenty-six-year-old quadriplegic has an implant the size of an aspirin sitting on the top of his brain that allows him to play simple video games, control a robotic arm, and even turn on and off a TV. By 2012 cyber kinetic chips could be able to process thoughts as fast as speech (Taylor). The transition eventually will be made from implants to headbands with unimaginable power. With this headband “Any kind of information is available anytime [a user wants]it, simply speak a question or even think it. [Once connected, a person]will always be connected wirelessly to the network, and an answer will return from a vast collectively-prodeuced data matrix. Google queries will seem quaint”(Kirkpatrick). With this breakthrough, the necessity to learn languages may disappear (Kirkpatrick). The biggest step is “network e...
These statistics are amazing, but even more amazing is the development of computers. Now in 2005, in this short 68-year period, computer technology has changed its entire look; now, we use computer chips instead of vacuum tubes and circuit board instead of wires. The changes in size and speed are probably the biggest. When we look at computers today, it is very hard to imagine computers 60 years ago were such big, heavy monsters.
Almost every device has some type of computer in it. Whether it is a cell phone, a calculator, or a vending machine. Even things that we take for granted most cars since the 1980’s have a computer in it or a pacemaker. All of the advancements in computers and technology have led up to the 21st century in which “the greatest advances in computer technology will occur…” Mainly in areas such as “hardware, software, communications and networks, mobile and wireless connectivity, and robotics.”