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Ada Lovelace Tee
Ada Lovelace Tee.
Our tribute to the first computer programmer in history.
Augusta Ada King, Countess of Lovelace, known worldwide as Ada Lovelace, was a British mathematician and writer (and a person we admire) was born in London on December 10, 1815 and died on November 27, 1852. Her fame comes mainly from his work and research on Charles Babbage’s general-purpose mechanical calculating machine, the so-called “analytical machine”. Among his notes on the machine is what is recognized today as the first algorithm to be processed by a machine, which is why it is considered the first computer programmer in history.
He deduced and foresaw the ability of computers to go beyond simple number calculations, while others, including Charles Babbage himself, focused solely on these capabilities.
His mother, Anne Isabella Noel Byron, was a mathematician and political and social activist. His father was the well-known poet George Byron.
Ada devotes a large part of her study to describing in a very technical language how the analytical machine would work, but also offers a series of observations that make clear its theoretical contribution. She clearly distinguished between data and processing; this thought was revolutionary in its time. Ada aspired to create computer science, which she called the science of operations. He realized the practical applications of the analytical machine and even glimpsed the possibility of digitizing music. Wrote in the Notes:
Suppose, for example, that the fundamental relationships between sounds, in the art of harmony, were susceptible to such expressions and adaptations: the machine could compose musical pieces as long and complex as one would like.
Ada had a clear idea: the analytical machine and the Jacquard loom come to do the same. A key phrase where this is expressed is:
It can be said that the first weaves algebraic drawings, in the same way that the Jacquard loom weaves flowers and leaves.
Ada clearly expresses the three functions that Babbage’s invention could fulfill: process mathematical formulas expressed with symbols, make numerical calculations (its primary objective) and give algebraic results in literal notation.
Babbage and Ada conceived the analytical machine in a very different way. The first was not too interested in its practical consequences. Ada, on the other hand, was obsessed with the applications of the invention. She was the first to intuit what Babbage’s invention meant for technological progress. He understood that the technology used in the Jacquard loom and in the analytical machine could be applied to any process that involved processing data: in this way it opened the way to a new science, that of information computing.
The first computer program
Ada Lovelace’s Notes were labeled alphabetically from A to G. Note G was devoted to Bernoulli’s numbers; in this section, Ada describes in detail the operations by which punched cards would “weave” a sequence of numbers in the analytical machine. This code is considered as the first algorithm specifically designed to be executed by a computer, although it was never tested since the machine was never built. But we can conclude that note G is Ada’s algorithm, so she is recognized as the first programmer in history, the first person to describe a general programming language interpreting Babbage’s ideas, but recognizing the full authorship and originality of their contributions. Lovelace is the mother of computer programming.
Ada Lovelace’s Notes were published in Scientific Memoirs in September 1843, under the title “Sketch of the analytical engine invented by Charles Babbage.” She signed with her initials A. A. L., but it was soon known who they belonged to. Her feminine condition hurt her work and the scientists did not take it seriously.
In her notes, Ada says that the “Analytical Engine” could only give available information that was already known: it clearly saw that it could not originate knowledge. His work was forgotten for many years, attributing him exclusively a role of transcriber of Babbage’s notes. He characterized his contribution by calling her his interpreter; however recent investigations show the originality of his point of view on the instructions necessary for the operation of the “analytical machine”.
In 1953, approximately one hundred years after his death, Ada’s notes on Babbage’s analytical machine were published under his real name, which is now recognized as an early computer model and Ada’s notes as a description of his software.
In his notes, Lovelace emphasized the difference between the analytical engine and the previous calculation machines, in particular its ability to be programmed to solve problems of any complexity. He realized that the device’s potential extended far beyond mere numerical crunching. In her notes, she wrote:
The analytical machine could act on other things besides the number, objects were found whose fundamental mutual relations could be expressed by those of the abstract science of the operations, and that also should be susceptible of adaptations to the action of the operative notation and the mechanism the motor . Assuming, for example, that the fundamental relationships of acute sounds in the science of harmony and musical composition were susceptible to such expression and adaptations, the motor could compose elaborate and scientific pieces of music of any degree of complexity or measure.
This analysis was an important development of previous ideas about the capabilities of computing devices and anticipated the implications of modern computing one hundred years before they were realized.
According to computer historian and specialist Babbage Doron Swade:
Ada saw something that Babbage in a certain sense could not see. In Babbage’s world, his engines were limited by number. What Lovelace saw – what Ada Byron saw – was that this number could represent entities other than quantity. So, once you had a machine to manipulate numbers, if those numbers represented other things, letters, musical notes, then the machine could manipulate symbols of what number was an instance, according to the rules. It is this fundamental transition from a machine that is a crossword to a machine to manipulate symbols according to the rules that is the fundamental transition from computation to computation-to general purpose computing-and looking back from the current high ground of the modern computing. if we are looking for and examining history for that transition, then that transition was explicitly made by Ada in that document of 1843.
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|Dimensions||48 × 120 in|
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