| while | On slide | - |
| while: semantik | On slide | - |
| White box test | On slide | - |
| widening | On slide | - |
| Windows 10: Installation af Windows Subsystem for Linux (WSL) | On slide | - |
| Windows: Alternativ installation af MinGW GCC compiler - Mingw-w64 | On slide | - |
| Windows: Installation af Cygwin GCC compiler | On slide | - |
| Windows: Installation af en mulig teksteditor | On slide | - |
| Windows: Installation en gcc compiler | On slide | - |
| write mode, fil | On slide | - |