MathBook XML by Ciro Santilli 37 Updated 2025-07-16
XML, ain't nobody ever going to write that manually.
Cardano by Ciro Santilli 37 Updated 2025-07-16
This was getting very hot as of 2022 for some reason. Would be good to understand why besides the awesome name.
Josephson equations by Ciro Santilli 37 Updated 2025-07-16
Two equations derived from first principles by Brian Josephson that characterize the device, somewhat like an I-V curve:
where:
Note how these equations are not a typical I-V curve, as they are not an instantaneous dependency between voltage and current: the history of the voltage matters! Or in other words, the system has an internal state, represented by the Josephson phase at a given point in time.
To understand them better, it is important to look at some important cases separately:
Deuterium by Ciro Santilli 37 Updated 2025-07-16
Applications:
Assembly language by Ciro Santilli 37 Updated 2025-07-16
A human readable way to write instructions for an instruction set architecture.
One of the topics covered in Ciro Santilli's Linux Kernel Module Cheat.
Punched card by Ciro Santilli 37 Updated 2025-07-16
Served as both input, output and storage system in the eary days!
Video 1.
1964 IBM 029 Keypunch Card Punching Demonstration by CuriousMarc (2014)
Source.
Video 2.
Using Punch Cards by Bubbles Whiting (2016)
Source. Interview at the The Centre for Computing History.
Video 3.
Once Upon A Punched Card by IBM (1964)
Source. Goes on and on a bit too long. But cool still.

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