Bou.lt

Projects
Notes
Logic, the natural numbers and computability Algebra including linear algebra Real analysis, variational calculus and functionals Complex analysis Abstract algebra Analytic geometry and Euclidian space Topology
Newtonian gravity and electrostatics Special relativity, electromagnetism and general relativity Rigid body physics
Computer science, integer RISC instructions (RV64I) and building a hex and macro assembler Simple algorithms with integer addition and subtraction and arrays, decision problems, other problems, lossless compression Algorithms for integer multiplication and division, and floating point arithmetic Freestanding C, and building a C compiler in assembly then C Data structures and algorithms
Univariate probability Multivariate probability Multivariate discriminative probability including machine learning Fully-connected neural networks Univariate time series Multivariate time series Multivariate probability inference Probabilistic Turing machines and algorithms, and encryption
Statistical mechanics Quantum mechanics and quantum computing Chemistry and geology Biology Engineering Electronics Pre-computer electronics for finite state machines including making a calculator: boot ROMs/firmware (mask ROM/diode matrix), punch cards, memory mapped IO for LEDs and keyboards and volatile RAM (SRAM and DRAM) (eg rom for e and pi in calculator, (could have big page on sequential/combinatorial logic before, and could introduce some of these here)
Manufacturing RV64I CPUs Micro-architecture including cache, prefetching, instruction pipelines, branch prediction, out-of-order execution and speculative execution Control additions (RV64I_Zicsr_Zifencei) integer multiplication and division (RV64IM_Zicsr_Zifencei), Floating Point Units (FPUs) (RV64IMFDQ_Zicsr_Zifencei), Single Instruction, Multiple Data (SIMD) (RV64IMFDQV_Zicsr_Zifencei) and Basic Linear Algebra Subprograms (BLAS)Other Reduced Instruction Set Computers (RISC) and Complex Instruction Set Computers (CISC)2D graphics Non-volatile editable memory: bootloaders and computer storage including magnetic memory (magnetic core memory, magnetic tape, floppy disks, hard drives), Semiconductor memory incuding SSD (EPROM/EEPROM/flash memory), optical memory (CD/DVD etc), Master Boot Record (MBR) and FAT32 Networks Audio 3D graphics Multithreading and multi-core CPUs (RV64IMFDQVA_Zicsr_Zifencei aka RV64GQV)Graphics Processing Units (GPUs) and Tensor Processing Units (TPUs)
RV64GQV_S, dynamic libraries, Memory Mapping Units (MMUs), Address Generation Units (AGUs), protection rings, CPU interrupts and GNU/Linux/Systemd Hosted C and compiling C code with Linux Securing the system and boot process: Including encrypting systems, Logical Volume Management (LVM), trusted execution environment, secure enclave, Supervisor Mode Access Prevention, Intel Management Engine (ME) and AMD Platform Security Processor (PSP)Networks on Linux Audio and video output in Linux, and sandboxing applications Serialisation, single-node databases, Structured Query Language (SQL) and Extract-Transform-Load/Extract-Load-Transform
Other imperative languages: Fortran, Algol, Pascal C++, objects, generic programming, functional programming and clang/LLVM, and transpilers Other C-family languages: Rust, Zig
Scheme and Common Lisp (compiled natively), and dynamic typing Functional languages: Meta Language (ML), Caml, OCaml and Haskell Other compiled languages with runtime systems: Objective-C, Nim, Forth, COBOL, Smalltalk and Simula Communicating Sequential Processes (CSP) and actor model concurrent languages: Swift, Go C#, F#, VB.NET and mono
Java, garbage collection, process virtual machines and Kotlin Other Lisp-family languages, and compiling them to VM: Racket, Clojure and Scala Communicating Sequential Processes (CSP) and actor model concurrent languages with virual machines: The BEAM VM and Erlang, Elixer, Dart (other concurrency model?)
Other interpreted languages: Lua, Perl, Ruby, Julia, Octave, PHP and FreeBASIC
HyperText Markup Language (HTML), Cascading Style Sheets (CSS) and the World Wide Web (WWW)JavaScript, Just-In-Time (JIT) compilation and WebAssembly (Wasm)Server-side javascript and javascript frameworks and libraries
Python Python: Data Python: Internet packages
R Specific packages for R Validating code and compilers: Coq (ocaml), compcert, hol (ocaml), isabelle, agda (haskell)Logical programming languages including ada and prolog
Reverse engineering hardware, backing up ROMs, hardware emulation including use of JIT and dynamic recompilers, and emulation of retro video game systems Reverse engineering software
Natural Language Processing (NLP) of just text, including transformers and Large Language Models (LLMs)Natural Language Processing (NLP) with text and audio Computer vision Working with specific datasets, and models including Llama and Stable Diffusion
Specific Linux distributions, system virtual machines, RV64GQVH_S, hardware-assisted virtualisation and OS-level virtualisation with Docker Distributed computing Integrated Development Environments (IDEs)Android
Microsoft Disk Operating System (MS-DOS) and other non-multitasking operating systems including ZX BASIC, Classic MacOS, PC88, PC98, MSX, Machine Operating System for BBC Micro, Commadore 64 FreeBSD and OpenBSD Windows 3.x, Windows 9x and Windows NT macOS and iOS
Decision and game theory General equilibrium Accounting Industrial organisation Money, banking and finance and international trade Microeconomics including information asymmetry, labour markets, externalities, public goods and subscription-based services Business Macroeconomics Public choice and government production of goods Cryptocurrencies Specific legislation and regulation Languages and packages for economics: Dynare for Octave, QuantEcon for Python/Julia, NetLogo; Mesa for Python
History Epistemology and ontology Political science and philosophy

GitHub
LinkedIn

RV64GQV_S, dynamic libraries, Memory Mapping Units (MMUs), Address Generation Units (AGUs), protection rings, CPU interrupts and GNU/Linux/Systemd

To DOS

File systems, block devices and tools for partitioning and formatting drives

File systems including ext2

Journalling file systems including ext4

Partitioning drives with GNU parted and util-linux: fdisk and cfdisk, and lsblk, wipefs and fsck

Formatting partitions using util-linux: mkfs

UEFI and non-BIOS first-stage bootloaders, and second-stage boot loaders

More first-stage boot loaders: UEFI and coreboot/libreboot

The boot partition and second-stage boot loaders, including GRUB

Memory Mapping Units (MMUs):

Address Generation Units (AGUs):

Linux kernel

Loading the Linux kernel from the boot partition

Directory layout on Linux: /boot, /sbin, /proc, /sys, /etc and /lib

The init process, openrc and runit, and mounting using /etc/fstab

User space

Using swap partitions with util-linux: mkswap, swapon and swapoff, and swapfiles

/dev/shm, /tmp and tmpfs

Linux multi stuff?

Batch processing

Concurrency control

Pseudo-character devices

Pseudo-character device files

Shells

Interactive login shells, read-eval-print loop (REPL), the Bourne shell implementations ash and dash, including commands: cd, fg, exit, jobs

Keyboards and locales

Other util-linux programs, including lscpu; more; mount and umount; dmesg; hwclock; kill; whereis; cal; fallocate; su; chsh

Linux modules using kmod: lsmod, insmod, rmmod, modprobe and modinfo

GNU coreutils: Basics

GNU Core Utilities: Exploring folders using ls and dir, vdir, dircolors, du and stat

GNU Core Utilities: Reading files using cat, tac, head and tail, and nl, od, base32, base64 and basenc

GNU Core Utilities: Writing to files using cp, dd and install, mv, rm and shred, mkdir, rmdir, touch and ln, readlink, mknod, mkfifo, mktemp, sync, link, unlink, truncate, split and csplit

GNU Core Utilities: Reading and transforming text using tr, cut, split, ptx, sort, tsort, expand, unexpand and uniq, fmt, pr and fold

GNU Core Utilities: Reading from multiple files using paste, comm and join

GNU Core Utilities: Summarising files with wc and checksums (sum, cksum, b2sum, md5sum, sha1sum, sha224sum, sha256sum, sha512sum

GNU Core Utilities: Modifying command invocation with chroot (and jails), env, nice, nohup, stdbuf and timeout

GNU Core Utilities: Getting system information with df, date, uptime, uname, env, printenv, nproc, pwd, stty, tty, printenv

GNU Core Utilities: Maths with seq, factor and numfmt

GNU Core Utilities: Conditionals with test, expr, true and false

GNU Core Utilities: SELinux with runcon and chcon

GNU Core Utilities: Printing with echo, printf and yes

GNU Core Utilities: tee

GNU Core Utilities: sleep

Managing users and groups with shadow-utils

Home directories in /root and /home/

/etc/passwd and /etc/shadow, and shadow-utils:

Setting passwords and logging out with logout and shadow-utils: passwd

Making and removing other users with shadow-utils: useradd and suserdel

Using groups with shadow utils: usermod, usermod, groupadd, groupdel, groupmod, groups, gpasswd

GNU coreutils: groups and users

GNU Core Utilities: who and whoami, chmod, chgrp, chown, users, logname, id, groups, pinky

Pluggable Authentication Modules (PAM)

Pluggable Authentication Modules (PAM)

GNU findutils

GNU findutils: xargs, find, locate, updatedb

GNU text editors

procps

procps with pgrep, pkill, pidwait, sysctl, free, top, watch, ps

Other GNU programs

GNU man-db: man and whatis

sudo, the /etc/sudoers file and disabling root login

Scripting

Additional shells

Bourne-Again Shell (bash), including commands: history

Archiving and compressing

File archiving using GNU pax-archive: pax, tar and cpio

Compression using GNU zip (gzip): gzip, gunzip and zcat

Systemd

Alternatives to Systemd

Making and removing other users with shadow-utils: useradd and suserdel

Introduction

useradd

useradd

userdel

userdel

what happens to files with user as owner?