Basic elements of computer programming

Of the elements of programming, which are always used by every program?

• Input and Output

• Input and looping

• Control and arithmetic

A high score in a video game may change over time. Where is this value stored for the program to work with?

• Variable

• Loop

• Conditional

Why are conditional statements important?

• They monitor the input

• The control a program loop by stopping it at a specified predetermined event.

• The deliver the output

• They receive data from the computer calculation

What is a loop?

• Data that changes over time

• Controlled calculations

• Putting information into the computer and generating an output display

• Cycling through a set of instructions until a condition is met

How is output from a program characterized?

• Saving data in a file

• Entering information into a program

• The end result of the program

• The processing of data

If you wanted to assign a value to a variable, which operator would you use?

• ==

• =

• =!

• equals

How does a loop know when to stop?

• It stops when it reaches the last line of the program

• When a predetermined condition is met

• It stops after the first trial run

• After 100 runs

What is a variable?

• A number

• A place in memory that holds a data value that changes

• A data value that changes

A placeholder for a piece of information that can change

• condition

• loop

• variable

Which of the following statements is correct?

• Algorithms define the routes through programs and the sequence in which instructions occur

• Data defines the routes through programs. Algorithms control the sequence in which instructions occur

• Algorithms define the routes through programs. Data controls the sequence in which instructions occur