Central processor units (CPUs)
Console applications vs. graphical user interface (GUI)
C# (sharp) programming language
access modifiers
asynchronous processing
binary digits
BinaryWriter/BinaryReader classes
calendar class
classes
coding structure
comparison operators
compiling process
CultureInfo class
curly brackets/variable scope/code blocks
dates/calendars
declarations
FileInfo class
file manipulation
for-loops
garbage collection
integrated development environments
interpreted languages
join method
key differences ...