PTE Academic Speaking read aloud practice samples
15
There is one development however, that pre-dates the others, and that is the invention of Theo A van Hengel and RPC Spangler, two Dutch naval officers who produced working rotor-based cipher machines for the Dutch War Department in 1915. This fact was discovered in 2003 and is described in a paper by Karl de Leeuw. Officially though, the Enigma machine was invented by Arthur Scherbius in 1918, right at the end of World War I. After several years of improving his invention, the first machine saw the light of day in 1923.
16
Contemporary machines such as computers using electricity can act so fast as to fool the observer into imagining timeless processes, leaving an impression of an instantaneously acquired history or pre-knowledge of rules required to construct those same rules themselves. However recursion does not commence (nor complete itself) spontaneously, it is given a name and some simple conditions before it starts to work. Recursion is heavy with time because it is essentially a process of systematically ruling out options until nothing is left and then ascending with this information back to the surface of the problem again.
There is one development however, that pre-dates the others, and that is the invention of Theo A van Hengel and RPC Spangler, two Dutch naval officers who produced working rotor-based cipher machines for the Dutch War Department in 1915. This fact was discovered in 2003 and is described in a paper by Karl de Leeuw. Officially though, the Enigma machine was invented by Arthur Scherbius in 1918, right at the end of World War I. After several years of improving his invention, the first machine saw the light of day in 1923.
17
The automated teller machine, or ATM, is such a complicated piece of technology that it does not have a single inventor. Instead, the ATMs we use today are an amalgam of several different inventions. Some of these proto-ATMs dispensed cash but did not accept deposits, for example, while others accepted deposits but did not dispense cash. Today’s ATMs are sophisticated computers that can do almost anything a human bank teller can, and have ushered in a new era of self-service in banking.
18
Machine Learning is a scientific discipline that addresses the following question: ‘How can we program systems to automatically learn and to improve with experience? ’Learning in this context is not learning by heart but recognizing complex patterns and make intelligent decisions based on data. The difficulty lies in the fact that the set of all possible decisions given all possible inputs is too complex to describe. To tackle this problem the field of Machine Learning develops algorithms that discover knowledge from specific data and experience, based on sound statistical and computational principles.
19
There is one development however, that pre-dates the others, and that is the invention of Theo A van Hengel and RPC Spangler, two Dutch naval officers who produced working rotor-based cipher machines for the Dutch War Department in 1915. This fact was discovered in 2003 and is described in a paper by Karl de Leeuw. Officially though, the Enigma machine was invented by Arthur Scherbius in 1918, right at the end of World War I. After several years of improving his invention, the first machine saw the light of day in 1923.
There is one development however, that pre-dates the others, and that is the invention of Theo A van Hengel and RPC Spangler, two Dutch naval officers who produced working rotor-based cipher machines for the Dutch War Department in 1915. This fact was discovered in 2003 and is described in a paper by Karl de Leeuw. Officially though, the Enigma machine was invented by Arthur Scherbius in 1918, right at the end of World War I. After several years of improving his invention, the first machine saw the light of day in 1923.
20
Contemporary machines such as computers using electricity can act so fast as to fool the observer into imagining timeless processes, leaving an impression of an instantaneously acquired history or pre-knowledge of rules required to construct those same rules themselves. However recursion does not commence (nor complete itself) spontaneously, it is given a name and some simple conditions before it starts to work. Recursion is heavy with time because it is essentially a process of systematically ruling out options until nothing is left and then ascending with this information back to the surface of the problem again.
21
The automated teller machine, or ATM, is such a complicated piece of technology that it does not have a single inventor. Instead, the ATMs we use today are an amalgam of several different inventions. Some of these proto-ATMs dispensed cash but did not accept deposits, for example, while others accepted deposits but did not dispense cash. Today’s ATMs are sophisticated computers that can do almost anything a human bank teller can, and have ushered in a new era of self-service in banking.
22
Machine Learning is a scientific discipline that addresses the following question: ‘How can we program systems to automatically learn and to improve with experience? ’Learning in this context is not learning by heart but recognizing complex patterns and make intelligent decisions based on data. The difficulty lies in the fact that the set of all possible decisions given all possible inputs is too complex to describe. To tackle this problem the field of Machine Learning develops algorithms that discover knowledge from specific data and experience, based on sound statistical and computational principles
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