PLTW 1.1.3 Vocabulary

123456789101112
Across
  1. 6. Information or signals entered into a computer system. Examples of input devices are buttons, keys on a keyboard, touch screens, and accelerometers.
  2. 7. A series of conditionals that a computer moves through until it finds the one that is true.
  3. 9. operator A symbol in code that tells a computer to perform a specific math operation, such as addition, subtraction, multiplication, or division. (+ - × / ).
  4. 11. In MIT App Inventor, a control block that looks for inputs or events to know when to perform a specific action.
  5. 12. To identify errors
Down
  1. 1. A processing decision branch using comparison operators (= ` > <) that is defined to return a Boolean value ("true" or "false"). By using this to ask questions, the program can determine what to do next.
  2. 2. The smallest unit of data storage that a program can use. A variable contains known or unknown information referred to as a "value". Two types of variables are global and local.
  3. 3. An action or occurrence that happens during runtime that will trigger a response or behavior by the software.
  4. 4. A function or artifact in an app that you can add in Design view of MIT App Inventor.
  5. 5. A programming statement that evaluates a true/false Boolean expression to determine the next steps in a program. Often written as 'if-then' or 'if-then-else' statements.
  6. 6. A whole number that does not have a decimal or any digits after the decimal.
  7. 8. Information or signals produced or delivered by a computer system.
  8. 10. A function of an application or user interface.