pycon2015/systems_programming_as_a_swiss_army_knife.md

Talk: systems programming as a swiss army knife

When I go to google.com, kernel code runs for:

• typing in the address
• handling every network packet
• writing history files to disk
• allocating memory
• communicating with the graphics card

You don't have to worry about these things because your operating system deals with it.

How to call operating system code

System calls

• interface to your operating system
• write files

Using systems knowledge to debug your programs