Alonzo Church

• Major contributor to early computer science

Sprite

• Like an actor on the stage who knows how to do many different things, such as walk around the stage and speak the lines of the play

Costumes

• Picture that can be “worn” by a sprite

Transparency

• How much of an image you can see and what's behind it

List

• An ordered sequence of items

  • The items of this list are strings

String

• A sequence of characters

  • Letters, digits, punctuation, etc…

Debugging

• Process of testing, finding problems, and fixing them is called debugging

Procedure

• Named sequence of instructions that may take inputs and may report a value

• Reporters

  • Have an oval shape

  • They report a value

• Commands

  • Have a jigsaw puzzle shape

  • Tell the computer to do something without reporting a value