For this week's Throwback Thursday, I'm taking a look at Ada Lovelace. This is a name I've been hearing for a while, and always mentioned when discussion Women in STEM, but I realized I actually know nothing about who this mysterious "Ada Lovelace" is! Time to change that.
Ada Lovelace was actually born Augusta Ada Byron on December 10, 1815. She was the only legitimate child of famed poet Lord Byron, though Ada never had a relationship with him. Ada went on to marry William King, who became the Earl of Lovelace. This then gave Ada the title Countess of Lovelace. Ada Lovelace died November 27, 1852, at the age of 37, from cancer.
Ada's mother, who had mathematical training herself, insisted that her daughter receive tutoring in mathematics and
music, "as disciplines to counter dangerous poetic tendencies" from her father. (www.sdsc.edu) This was a most unusual education for a woman at this time as the participation of noblewomen in intellectual
pursuits was not widely encouraged. (Not that it's particularly encouraged 200 years later!) However, Ada and her mother were part of the elite London society, which gave Ada the opportunity to meet Charles Babbage at a party when she was 17.
(And here is where I start directly quoting other sources as I can't say it better!)
Charles Babbage, a professor of mathematics
at Cambridge, was the "inventor of the Difference Engine, an elaborate calculating machine that operated by the method of
finite differences".(www.sdsc.edu)
"Ada got a chance to look at the (Difference Engine) before it was finished, and
was captivated by it. Babbage also created plans for another device
known as the analytical engine, designed to handle more complex
calculations.
"Ada was later asked to translate an article on
Babbage's analytical engine that had been written by Italian engineer
Luigi Federico Menabrea for a Swiss journal. She not only translated the
original French text in English, but also added her own thoughts and
ideas on the machine. Her notes ended up being three times longer than
the original article. Her work was published in 1843, in an English
science journal...
"In her notes, Ada described how
codes could be created for the device to handle letters and symbols
along with numbers. She also theorized a method for the engine to repeat
a series of instructions, a process known as looping that computer
programs use today." (www.biography.com)
"The Notes included the first published description of a stepwise
sequence of operations for solving certain mathematical problems and Ada
is often referred to as 'the first programmer'" (http://www.computerhistory.org)
"Perhaps more importantly, the article contained statements by Ada that
from a modern perspective are visionary. She speculated that the Engine
'might act upon other things besides number... the Engine might compose
elaborate and scientific pieces of music of any degree of complexity or
extent'. The idea of a machine that could manipulate symbols in
accordance with rules and that number could represent entities other
than quantity mark the fundamental transition from calculation to
computation. Ada was the first to explicitly articulate this notion and
in this she appears to have seen further than Babbage. She has been
referred to as 'prophet of the computer age'. Certainly she was the
first to express the potential for computers outside mathematics." (http://www.computerhistory.org)
Overall, Ada "understood the plans for the
device as well as Babbage but was better at articulating its promise." (www.sdsc.edu)
Truly amazing how a woman in the mid-1800s could already visualize all of the amazing things humans went on to do with computers, aside from just calculating mathematical equations. Especially considering that when I saw the commercial for the first iPhone, I thought it was as joke! There was no way you could do all that with a cell phone. Yet here we are.
Ada Lovelace has a computer language named after her (Ada), that was created on behalf of the United States Department of Defense. Also, "Ada Lovelace Day" is an annual event celebrated in mid-October
whose goal is to "... raise the profile of women in science,
technology, engineering and maths," and to "create new role models for
girls and women" in these fields. I've never before heard of Ada Lovelace Day (we have all these events to inspire women, but they aren't well advertised!!) , but look forward to celebrating this year on October 11!
References:
http://www.biography.com/people/ada-lovelace-20825323
https://www.sdsc.edu/ScienceWomen/lovelace.html
http://www.computerhistory.org/babbage/adalovelace/
https://en.wikipedia.org/wiki/Ada_Lovelace
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