1.2 Flashcards

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1
Q

Decomposition

A

A problem solving a strategy of breaking a problem apart into a smaller problem

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2
Q

Default

A

A default value is a value that is a variable that will have no action taken by the user.

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3
Q

Digital

A

Digital information has discrete values with gaps between the values. Digital information can be exactly represented using a binary representation. Digital information can be duplicated exactly, without loss in quality. Digital information can be transmitted error-free

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4
Q

Digital Divide

A

The contrast between two groups’ access to computing resources and the Internet on the basis of race, wealth, or national boundaries

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5
Q

Economic Impact

A

Economic impacts of computing include changes in the numbers types, and wages of jobs, and changes in the amount, type, and cost of services, goods, and materials produced

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6
Q

Evaluate

A

To determine the result of an expression

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7
Q

Event

A

An action that triggers an event handler to be executed, such as user input or a timer’s alarm

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8
Q

Event handler

A

A part of a program that runs when an event occurs

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9
Q

Global variable

A

A variable that can be used anywhere in a program, unlike a local variable, which can only be used in one portion of a program. In App Inventor, procedures, event handlers, and for loops can create a local variable that can only be used inside that procedure, event handler, or for loop

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10
Q

Input

A

Information provided to the computer from a person or from another computer, through input devices such as the keyboard, mouse, or touch screen

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11
Q

interface

A

The way a human interacts with a computer through the input and output

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12
Q

Modeling and simulation

A

A model is a simplified description of some object or phenomenon. A simulation is a computer-executed version, often predicting how an initial state will evolve over time

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13
Q

Output

A

Information sent by the computer to a person or to another computer, through output devices such as a display or printer, speaker, or motor

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14
Q

Parameters

A

Variables that can be used inside a procedure. The variables are initialized with arguments’ values when the procedure is called.

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15
Q

Processor

A

The component of a computer that follows instructions

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16
Q

Professional Greeting

A

A standardized procedure that professionals use when they meet or begin work together

17
Q

Property

A

A variable that stores information about an object

18
Q

Social impacts

A

Social impacts of computing include changes in how people communicate with each other and in how groups of people form and function, including circles of friends and structures of government

19
Q

Sprint task list

A

A list of small steps to accomplish, breaking down a user story from the backlog

20
Q

String

A

A sequence of characters

21
Q

Team Norms

A

Team norms are agreements among all team members. Team norms typically spell out that all team members will provide input and provide protocols for communication, work together, and conflict resolution

22
Q

Variable

A

A place in memory to store a value

23
Q

Voltage

A

Voltage is the energy difference per electron between two locations. The energy can be converted to kinetic energy when electrons fall from low voltage to high voltage