LinuxFocus.org articles

• A digital DC power supply -- part 3: command control from the PC
  
• Computer Assisted Simulation of DNA using Linux and Perl
  
• Automate the creation of graphs with Graphviz
  
• LF Tip: #defines for writing portable C-code
  
• A digital DC power supply -- part 2: the software
  
• Book review: The Linux Enterprise Cluster
  
• LF Tip: USB mice and laptops