shell script to download all volumes of Lord Knuth's Art of Computer Programming:
#!/bin/sh
## Volume 1 - Fundamental Algorithms, 3rd Edition
wget -c http://broiler.astrometry.net/~kilian/The_Art_of_Computer_Programming%20-%20Vol%201.pdf -O art_of_compProg-vol1 &&
## Volume 2 - Seminumerical Algorithms, 2nd Edition
wget -c https://archive.org/download/B-001-002-137/Addison.Wesley.Donald.E.Knuth.The.Art.of.Computer.Programming.Volume.2.pdf -O art_of_compProg-vol2.pdf &&
## Volume 3 - Sorting and Searching, 2nd Edition
wget -c https://archive.org/download/B-001-001-250/B-001-001-250.pdf -O art_of_compProg-vol3.pdf &&
## Volume 4A- Combinatorial Algorithms
wget -c https://users.dcc.uchile.cl/~nbaloian/cc3001-02/Libros/Algoritmos%20y%20Estructura%20de%20Datos/The%20Art%20of%20Computer%20Programming%20Vol.4A%20-%20Combinatorial%20Algor.pdf -O art_of_compProg-vol4.pdf
are books and resources loved by r/learnprogramming community for going the extra mile of curiosity in the CS world. Compiled by me, a lurker who kept track.
Websites and online resources:
amazing detailed notes for math foundations of computing
web tool to help you type code and see it translate to assembly
Computer Science Crash Course by Raspberry Pi Foundation
what every programmer should know about floating-pointer arithmetic, and more
follow-up of last link - what every programmer should know about memory
series by Ben Eater where he builds an entire computer on a breadboard and explains everything well
this along with this explains everything from the logic gate on up to a functioning system
this teaches you to build a modern computer from first principles.
http://home.netcom.com/~tjensen/ptr/pointers.htm [introduces pointers to beginning programmers in the C programming language]
And this. 6502 is what old consoles ran on. After you assemble you can click the disassemble or hexdump button to see the difference between lda #$01 and lda $01!