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Unit 2 App Inventors

unit 2 vocabulary

QuestionAnswer
Redundancy Duplicated or replicated code within a program.
for loop A type of loop that repeats for a given number of repetitions.
Parameter A value provided as input to a code block or a predefined procedure.
header for block code The first line of a code block that embodies other blocks. The top line of text for an event handler block, or an if-else block, or a for loop.
local variable A variable that is only accessible inside a block of code or a procedure.
procedure A set of code that performs an action and is considered a type of abstraction.
list An ordered collection of data elements stored and accessed in a program.
Initialize To assign a variable its initial, or first, value.
dynamic list A list whose items can change during the runtime of a program.
traverse To loop through a list of items, one item at a time.
persistent data Any data that is stored and not lost after the application is terminated or power to the device is shut off.
crowd sourcing A strategy that takes advantage of large numbers of people connected by computer networks to collect information and get a better understanding of a specific topic or situation.
Big data Very large data sets that can be analyzed to better understand systems and show patterns of behavior.
Database A collection of data that is stored permanently on a computer or digital device. A database is organized in a way that allows the programmer to access, update, and remove any data element as needed.
string A sequence of characters (letters, numerals, symbols, and punctuation marks).
Design process A systematic, problem-solving strategy that designers follow to come up with a solution to a problem.
Created by: s54370
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