Adding solution
Adding Sync.py
Quick fix
Adding lecture 14
Log2 scale
Merge branch 'master' of github.com:AllenDowney/SoftwareSystems
Bug fix in Sync.py
Adding lecture15
Merge branch 'master' of github.com:AllenDowney/SoftwareSystems
Add completed hashtable, unit tests and original tests
First attempt at faster digital writing
bytes and stuff