The advantages of Quantum Computing
It has been shown in theory that a quantum computer will be able to perform any task that a classical computer can. However, this does not necessarily mean that a quantum computer will outperform a classical computer for all types of task. If we use our classical algorithms on a quantum computer, it will simply perform the calculation in a similar manner to a classical computer. In order for a quantum computer to show its superiority it needs to use new algorithms which can exploit the phenomenon of quantum parallelism.
Such algorithms are not easy to formulate, but once discovered they yield spectacular results. An example of one such algorithm is the quantum factorization algorithm created by Peter Shor of AT&T Bell laboratories. The algorithm tackles the problem of factorizing large numbers into its prime factors. This task is classically very difficult to solve; in fact it is so difficult that it forms the basis of RSA encryption, probably the most popular method of encryption used today. Shor's algorithm cleverly uses the effects of quantum parallelism to give the results of the prime factorization problem in a matter of seconds whereas a classical computer would take, in some cases, more than the age of the universe to produce a result!
The disadvantages of Quantum Computing
The technology needed to build a quantum computer is currently beyond our reach. This is due to the fact that the coherent state, fundamental to a quantum computers operation, is destroyed as soon as it is measurably affected by its environment. Attempts at combating this problem have had little success, but the hunt for a practical solution continues and some encryption Problem as well because mostly all the encryption-decryption Algorithms are based on Prime Factors and using Quantum Computer we can easily calculate the Prime factors of any number.
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Here's an essay on Advantages and Disadvantages of Computers.
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Advantages and disadvantages of a computer in the 21st century.
Advantages- more power, better MPG, smoother idle. Disadvantages- more expensive to fix, hard to work on.
Advantages: It's digital. Disavantages: It's not analogue.
It has no advantages or disadvantages. localhost is a domain name that represents your computers local IP address.
There are various advantages and disadvantages associated with Macintosh computers. For example, Macs are good for audio work. However, you may have compatibility issues.
Computers don't work without a CPU, so there are no advantages or disadvantages.
Growth in computer technology, starting from valve computers till quantum computers
* They take up a lot of space * They create a lot of heat
Security and storage are the disadvantages of computers for research institutes. The two above-mentioned limitations -- which ironically also serve as advantages -- exist because of crashes, glitches, and hackings.
One disadvantage to computers is the fact that they can be expensive for some people. An advantage to computers is their ability to connect people from across the world.