From The Science Asylum.

All computers throughout history have always functioned because of one simple device: a switch.

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Nick Lucid – Host, Writer, Editor, Animator
Em Lucid – Producer
Alexis Dahl – Content Consultant
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SOURCES

https://www.computerhistory.org/timeline/1940/
https://en.wikipedia.org/wiki/Transistor_count
https://www.techtarget.com/whatis/definition/logic-gate-AND-OR-XOR-NOT-NAND-NOR-and-XNOR
https://www.101computing.net/binary-additions-using-logic-gates/
https://www.101computing.net/binary-subtraction-using-logic-gates/
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LINKS TO COMMENTS

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IMAGE/VIDEO CREDITS

ENIAC:
https://commons.wikimedia.org/wiki/File:Glen_Beck_and_Betty_Snyder_program_the_ENIAC_in_building_328_at_the_Ballistic_Research_Laboratory.jpg

Vacuum Tubes:
https://commons.wikimedia.org/wiki/File:Early_triode_vacuum_tube_collection.jpg

Transistors:
https://commons.wikimedia.org/wiki/File:BC546B_transistor_(01).jpg
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TIME CODES

00:00 Intro
00:41 Switches
01:21 Binary Numbers
02:17 Binary Addition
02:53 Vacuum Tubes
03:59 Truth Table: Addition
05:13 Carry-Over Check
05:49 Sum Check
06:33 Logic Gates
07:27 Binary Subtraction
08:30 Binary Multiplication
09:01 Transistors
09:13 Closing Thoughts
09:58 Featured Comment