Capture Attention $($Hook$)$:

Provide a Motive to Listen $($Relevance to Audience$)$:

Speaker Credibility:

Thesis:

Preview of Main Points:

Main Idea $1$:

Evidence for Main Idea $1$:

Transition between Main Idea $1$ and Main

Idea $2$:

Main Idea $2$:

Evidence for Main Idea $2$:

Transition between Main Idea $2$ and Main

Idea $3$:

Main Idea $3$:

Evidence for Main Idea $3$:

Restate Thesis:

Summary of Main Points:

Provide Closure$/$Final Thought:

Now that you understand how difficult of a problem Enigma posed, let's move on to discussing how Turing solved it$.$

I've been interested in the story of how Alan Turing cracked Enigma since I first heard about it$,$ and l've also done a lot of research on the topic.

Now that we've covered how Turing's theories contributed to computer science, let's move on to talking about the Enigma code.

Alan Turing made contributions to theoretical computing and applied his theories to supporting the Allied war effort in World War I.

Turing and his colleagues faced a difficult challenge in cracking the Enigma code.

$1.$ Turing developed a theoretical model for computation that is now known as a Turing Machine $($Copeland $1).$

$2.$ Turing Machines used different algorithms to complete specific mathematical problems. This use of algorithms is the foundation of all modern computers, even the smartphones in your pockets $($O$\text{'}$Connor$).$

Today we learned that Alan Turing's theories helped to further the study of theoretical computing, and his work on the Enigma code helped the Allies win the war.

In summary, not only did Turing develop a model for the modern computer, he and his colleagues overcame many challenges to save lives by cracking the Enigma code. $1.$ Turing's bombes solved the Enigma encryption by searching for

"cribs", or repeated phrases in intercepted messages, to narrow the search when decrypting texts $($Copeland $248).$

$2.$ Turing's bombes had a significant impasmon the war effort.

a$.$ Turing's bombes were decrypting $84,000$ messages a month by $1943($Copeland and Proudfoot$).$

b$.$ Turing and his colleagues may have shortened the war by at least $2$ years $($Copeland $2).$

$1.$ Turing had to crack what the Germans believed to be an

"unbreakable" system of encryption, called Enigma $($Cokeley$).$

$2.$ Turing had to determine the settings for the Enigma machine, which changed daily $($Copeland $220-224).$

In the first nine months of World War II$,$ German submarines sunk $701$

Allied ships $($O$\text{'}$Connor$).$ The Allied forces failed to anticipate these attacks because the Germans used an encryption called Enigma to secure all of their communications. This code was cracked by a man named Alan Turing, who is also known for his contributions to the development of computers.

Alan Turing's work was not only important during World War II; it matters to us today. Turing's model for the Turing Machine has influenced computer scientists the world over, and his ideas are still being taught in universities today. His ideas influenced the development of the computer and the study of computer science. So$,$ the next time you use a computer, remember the man who made computers possible.

Our lives revolve around computers, but most of us know very little about how computers have factored into history. Alan Turing's story is an important example of the application of computer science to solving a difficult problem.

First, I'll discuss Alan Turing's significant contributions to the development of computer science. Second, I will discuss the challenges he and his colleagues faced in cracking the Enigma Code. Third, I will explain how he developed an invaluable machine called the bombe.

Turing cracked the Enigma code by building a machine called a bombe, and this machine had a significant impact on the war effort.

Turing made significant contributions to the development of computer science.

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