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  • Code.org
Binary & data
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Adafruit founder Limor Fried and program manager Federico Gomez Suarez explain how computers represent numbers, text, images, and sound using tiny electric signals.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Federico Gomez Suarez
Limor Fried
Date Added:
07/14/2021
CPU, memory, input & output
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Smart fabric designer Madison Maxey and founder and maker Danielle Applestone explain the different components that allow computers to input, store, process, and output information.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Code.org
Khan Academy
Date Added:
07/14/2021
The Caesar cipher
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Brit explains the Caesar cipher, the first popular substitution cipher, and shows how it was broken with "frequency analysis". Created by Brit Cruise.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Brit Cruise
Date Added:
07/14/2021
Circuits & Logic
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Adafruit founder Limor Fried and virtual reality designer Nat Brown show how simple logical circuits underlie everything your computer does.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Code.org
Khan Academy
Date Added:
07/14/2021
Converting decimal numbers to binary
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Learn a technique for converting decimal numbers into binary numbers using just pen, paper, and calculations. Works best for small numbers, since bigger numbers require increasingly more calculations. Created by Pamela Fox.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Pamela Fox
Date Added:
07/14/2021
Cybersecurity and crime
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CC BY-NC-SA
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Google Security Princess Parisa Tabriz and Jenny Martin from Symantec introduce the most common types of cybercrime, including viruses, malware, DDOS attacks and phishing scams.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Code.org
Khan Academy
Date Added:
07/14/2021
Decimal system refresher
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CC BY-NC-SA
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Review how the decimal number system works before diving into the binary number system. The decimal number system and binary number system work the same way; the only difference is what each digit represents (0-9 versus 0/1). Created by Pamela Fox.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Pamela Fox
Date Added:
07/14/2021
Encryption and public keys
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CC BY-NC-SA
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Mia Epner, who works on security for a US national intelligence agency, explains how cryptography allows for the secure transfer of data online. This video explains 256-bit encryption, public and private keys, SSL & TLS and HTTPS.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Code.org
Khan Academy
Date Added:
07/14/2021
Frequency stability property short film
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CC BY-NC-SA
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Can you tell the difference between actions based upon flipping a coin and those based upon blind guessing or simulating randomness? This short video examines the frequency stability property. Created by Brit Cruise.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Brit Cruise
Date Added:
07/14/2021
HTTP and HTML
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CC BY-NC-SA
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Tumblr founder David Karp and Xbox program manager Jasmine Lawrence give a detailed description of how files and webpages are sent and received using HTTP and HTML.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Code.org
Khan Academy
Date Added:
07/14/2021
Hardware and Software
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CC BY-NC-SA
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Engineering manager Erica Gomez, program manager Jerome Holman, and Microsoft founder Bill Gates explain how a computer's hardware and software work together.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Code.org
Khan Academy
Date Added:
07/14/2021
IP addresses and DNS
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CC BY-NC-SA
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The co-founder of the Internet Vint Cerf and software engineer Paola Mejia take us through the ins and outs of how networks talk to each other.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Code.org
Khan Academy
Date Added:
07/14/2021
Packets, routers, and reliability
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CC BY-NC-SA
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Spotify engineer Lynn Root and Vint Cerf, Father of the Internet, explain how information on the Internet is broken down into packets, and how to ensure that information is reliably received.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Code.org
Khan Academy
Date Added:
07/14/2021
Perfect secrecy
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Claude Shannon's idea of perfect secrecy: no amount of computational power can help improve your ability to break the one-time pad. Created by Brit Cruise.

Subject:
Applied Science
Computer Science
Material Type:
Lesson
Provider:
Khan Academy
Provider Set:
Code.org
Author:
Brit Cruise
Date Added:
07/14/2021