Input/Output Functions in C

1. Header Files

1.1. Formatted IO

1.1.1. printf()

1.1.2. scanf()

1.2. Unformatted IO

1.2.1. Character IO

1.2.1.1. getchar

1.2.1.2. getche

1.2.1.3. getch

1.2.1.4. putchar

1.2.2. String IO

1.2.2.1. gets

1.2.2.2. puts