What character set does C99 use? What are the valid integer representations of it?

What values can be assigned to type char?

How are char data types represented in C?

How do signed & unsigned char differ? Which is preferred?

What are Integeral/Integer types?

What are Floating types?

What are Escape Sequences?

How do we make a program that converts a lowercase letter to its uppercase version?

What function let’s us convert letters: from lowercase to uppercase & vice-versa?

What functions let us get & write a single char?