By default, CMU web servers do not allow you to run scripts written in PHP, Ruby, Perl, and Python. However there is a way to enable this feature by using http://www.contrib.andrew.cmu.edu web server.

The SOP (Statement of Purpose) season is back! and I got requests from my friends to review and help them polish up their SOPs. I wanted to share my LaTeX template for SOP with them. Please feel free to use it.

• Sample SOP: sample.pdf
• Git Repository: https://bitbucket.org/soonhok/sop/src

In the previous post, we built a LEGO Turing machine. However, we did not talk about how to run the machine. In this post, we focus on how to program Turing machines. Starting from a very naive implementation which only uses a single task, we will add more features to the machine incrementally:

• multi-task
• concurrent movements
• log via USB
• support its own programming language
• transfer a program via USB

There are two posts on how to install nxtOSEK in OSX (Lion) – nxtOSEK official documentation and Augusto Ribeiro’s post. However, they do not work for me. I spent some time to figure out problems and find a solution. Here is my finding:

In this article, I illustrate how to build a (slightly) modified version of the LEGO Turing machine built by researchers at CWI.