12.2 Reading
Original text
The idea of developing quantum computers is not a new one, but practical developments are relatively recent. It was first suggested by Richard Feynman in 1981, but the science which underpins the idea goes back much further.
Student text
Quantum computing is not a new idea. As Franco P & Chavez M [1] explain that the science which underpins quantum computing goes back a long time.
Corrected student text
Quantum computing is not a new idea. As Franco & Chavez [1] explain, ‘the science which underpins the idea goes back much further’. (pp. 135–138)
Comments
Because as has been used, that has been removed. It would be equally appropriate to use that and remove as.
Most of the sentence from ‘the science …’ onward has been copied directly from the text. This is plagiarism. To avoid it, the easiest way is to use the original as a quotation and change a long time to the much further in the original.
A page number needs to be added because a quotation is used.
The term ‘quantum mechanics’ was first used in 1924. Subsequently, a textbook outlining the theories (The Principles of Quantum Mechanics [1]) was published in 1930; it is still in use.
For example, the first time the words quantum mechanics was used was in the 1920s and a textbook outlining these theories, which is still in use, was published in 1930.
For example, the phrase ‘quantum mechanics’ originated in the mid-1920s. By 1930, key theories of quantum mechanics had been published in a textbook.
This is quite a reasonable attempt. The student has made a number of changes. They have replaced 1924 with in the 1920s, term with words and first used with first time and used.
However, most of the second part of the sentence is copied directly from the source, so a paraphrase is needed.
Quantum computers which could be used for general purposes would represent a major step forward for computing … they could decode almost all existing cryptography, making it possible to read all types of secret communications.
General purpose ‘quantum computers’ could be extremely powerful. According to Franco and Chavez, they say that general purpose quantum computers could break almost all existing cryptography. This means that it would be possible to read any messages sent by computer.
Quantum computers which could be used for general purposes would represent a major step forward for computing. Although this is likely to take some time, the development of working computers shows rapid progress is being made.
However, Franco and Chavez ([1] pp. 135–138) suggest that ‘we are still a long way from a quantum computer which is general purpose’ although there is considerable progress.
General purpose ‘quantum computers’ could be extremely powerful. According to Franco and Chavez [1], these devices could read any secret messages sent by computer.
The student has rephrased which could be used for general purposes as general purpose, which is good. They have also replaced major step forward for computing with extremely powerful, which seems to have a similar meaning in the paragraph.
However, they have used they say, which is not needed, and they have also forgotten to include the source.
However, Franco and Chavez ([1] pp. 135–138) suggest that a general-purpose quantum computer is some way off, although there is considerable progress.
or
However, Franco and Chavez ([1] pp. 135–138) suggest that a general-purpose quantum computer is ‘likely to take some time’ although there is considerable progress.
and object and facial recognition. It has also meant that computers can perform tasks which humans cannot match, such as predicting the structures of proteins which can lead to the creation of new drugs and new materials. In addition to developments in software, there are also developments in hardware. Until now, computing has been ‘classical computing’ which follows a Turing model of input, process and output and which uses binary values. This means that there are limits to how quickly these computers can process data. Quantum computing could produce much higher levels of processing power. Although the key principles of quantum mechanics have
The student has used the correct format for a quotation.
However, the text in quotation marks does not appear in the source text. The student should create a paraphrase of the original text.
Alternatively, they could include part of the original as a quotation.
been known since the early 20th
century, it is only more
recently that practical quantum computing has become possible. The power of these computers continues to increase. However, these are specialized computers, and the next challenge is to create general purpose quantum computers. General purpose quantum computers would have many possibilities. For example, they could lead to new discoveries in drug development and materials development. They also have the potential to read all types of existing secret communications. While it is difficult to make predictions about these developments, it is likely that the power of computing will continue to increase.
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