Programming Essentials
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Output text to user using command line interface

Input text from user using command line interface

Output text To File

Input text from file

Open a popup window using a window interface

Output text to user using a window interface

Position text in a window

Input text from user using a window interface

Read text into a variable from a window interface

Process a string of text and be able to tell what character each byte is.

Tell when a string of bytes is a number and convert it to a numeric value.

Read a string of bytes to a variable using a window interface

Place a button in a window

Place a radio button in a window

Place a checkbox in a window