Vacuum Tube Computer P.18 – ALU Installed and Tested

In this episode, the computer starts to come together! We get the ALU installed as well as the Results Register and Carry Register (and all the other necessary components to make them talk to the rest of the machine). Then, to make sure everything is working like it’s supposed to, we test out all the Logic functions of the ALU as well as add two 4-bit binary numbers together. In a sense, it executed its very first program!

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Music:
Artist: LSD
Title: Castlevania III: Dracula's Curse "In the Beginning There Was Jazz"
https://ocremix.org/remix/OCR01711

Artist: Red Tailed Fox
Title: Suco de Melancia
https://ocremix.org/remix/OCR01671

Intro Music adapted from:
Artist: The Runaway Five
Title: The Shinra Shuffle
https://ocremix.org/remix/OCR01847

Thanks for watching!

Chapters
0:00 Intro
2:08 New pieces
4:57 First test (failure)
7:52 What went wrong
10:26 Fixing problems
11:38 Testing logic functions
16:05 Adding two 4-bit numbers
19:27 Outro
20:38 Bunny!