stress-ng by Ciro Santilli 37 Updated 2025-07-16
The interface is a bit annoying, but the tool is really cool.
100 cycles of matrixprod:
stress-ng -c1 --cpu-ops 100 --cpu-method matrixprod
man stress-ng gives the list of possible --cpu-method. It documents matrixprod as:
matrix product of two 128 × 128 matrices of double floats. Testing on 64 bit x86 hardware shows that this is provides a good mix of memory, cache and floating point operations and is probably the best CPU method to use to make a CPU run hot.
If you don't specify the --cpu-method it apparently loops through every method one by one.
Limit time to 1s instead of limiting cycles:
stress-ng -c1 -t1 --cpu-method matrixprod
Computer company by Ciro Santilli 37 Updated 2025-07-16
This section is about companies that were primarily started as computer makers.
Apple Inc. by Ciro Santilli 37 Updated 2025-07-16
Video 1.
The Mapple Store and Steve Mobs from The Simpsons
. Source.
Think different by Ciro Santilli 37 Updated 2025-07-16
Of course, this only made sense when Apple was more of an underdog to IBM, and Ciro Santilli greatly admires their defiance of the norm.
As of 2020 however, Apple is kind of on the top of the mobile world, and Think different simply makes no sense anymore, notably because it relies on closed source offline software used by millions.
This is a trap every company that prides itself on it's "alternative culture" sets for itself. If they succeed, they could become the norm.
Figure 2.
1976 Think different. 2011 Think mainstream
. Cropped from wallpapersafari.com/w/RqYUEj.
Video 1.
1984 Macintosh advertisement by Apple (1984)
Source. This ad suggests that Apple was the new thinker that would destroy IBM, as Steve Jobs said it himself when introducing the ad: www.youtube.com/watch?v=zlQvMp5rB6g. And then Apple became IBM in the 2000's starting with the launch of the iPod and then leading up to the iPhone.
Because the people who are crazy enough to think they can change the world are the ones who do.
iPod by Ciro Santilli 37 Updated 2025-07-16
Was a direct tech predecessor to the iPhone.
MacOS by Ciro Santilli 37 Updated 2025-07-16
Nice looking and expensive operating system by Apple. Ciro Santilli believes that:
Ronald Wayne by Ciro Santilli 37 Updated 2025-07-16
Video 1.
The Sad Story of Apple's Third Co-Founder by ColdFusion (2022)
Source.
Steve Jobs by Ciro Santilli 37 Updated 2025-07-16
Co-founder of Apple.
Is Jobs evil? Is he interesting? Undoubtedly.
Good quotes:
TODO clear attribution source:
Some people say, "Give the customers what they want." But that's not my approach. Our job is to figure out what they're going to want before they do. I think Henry Ford once said, "If I'd asked customers what they wanted, they would have told me, 'A faster horse!'" People don't know what they want until you show it to them. That's why I never rely on market research. Our task is to read things that are not yet on the page.
Fujitsu by Ciro Santilli 37 Updated 2025-07-16
The japanese name literally means:
  • 富士 fushi, from Mount Fuji, which itself has unknown origin
  • 通 tong: telecommunications

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact