Josef “Jeff” Sipek


The resolution of the Bitcoin experiment

Needs washed — A (strange) regional syntactic construct.

The Inside Story of an Aid Worker’s Secret Weapon: The Tarp

3L: The Operating System for the Future — An OS written in Scheme.

Dear Headhunters… — Joerg Moellenkamp’s rant directed at headhunters.

Princeton University Computer Architecture — Computer architecture course from Princeton offered through Coursera.

Glendix — Plan 9 userspace on top of the Linux kernel.

awk-raycaster — Pseudo-3D shooter written completely in awk using raycasting.


O(n) binary search for when O(log n) is just too fast.

A Constructive Look At TempleOS

D3 gallery — chock full of neat visualizations.

The Apollo Guidance Computer: Architecture and Operation seems to be a nice book.

Detecting In-Flight Page Changes with Web Tripwires

Operating Systems: Three Easy Pieces

I just found out that Remzi and Andrea decided to write a textbook about operating systems. This is exciting for several reasons. Here are the top two.

First and foremost, the book is free. That’s right, a textbook that is free when every other computer science textbook is easily around $100. Why? I’ll let Remzi make the case. Long story short, publishing a textbook isn’t about making money. It is about sharing ideas. You can download it from the textbook’s website.

Second, the book is by Remzi and Andrea. This pair of professors from the University of Wisconsin is responsible for a ton of amazing storage related research. If you don’t believe me, check out their publication track record.

I suppose I should mention that I have read only very little of the book, but I did push it onto the top of my to-read stack and I’m slowly making my way through it. I’ll let you all know how it goes.

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