Questions Answered Correctly By Expert
What are the basic instruction types of a computer program?
Correct Answer - - input
- process
- output
What is a variable? Correct Answer - refers to data that
programs use. A variables value changes or is "varying" as a
program assigns a variable with new values.
What is the equation for a triangles area? Correct Answer -
base x height divided by 2
base x height / 2
How do you find the average of a set of numbers? Correct Answer
- The sum of the numbers divided by the total number of values
in the set.
For example, suppose we want the average of 24 , 55 , 17 , 87 and
100 . Simply find the sum of the numbers: 24 + 55 + 17 + 87 + 100 =
283 and divide by 5 to get 56.6
What is computational thinking? Correct Answer - creating a
sequence of instructions to solve a problem
What is an algorithm? Correct Answer - A sequence of
instructions that solves a problem
What is a flowchart? Correct Answer - a graphical language for
creating computer programs
,What is a program? Correct Answer - A list of statements, each
statement carrying out some action and executing one at a time
What is a tool that runs a programs statements? Correct Answer -
Interpreter
What is a specific action in a program? Correct Answer - a
statement
What shape is used for an input and output statement?
(zyflowcharts) Correct Answer - parallelogram
What represents a new line? Correct Answer - \n
What is a comment? Correct Answer - text a programmer adds
to a program, to be read by humans to better understand the code,
but ignored by the program when executing.
Comments begin with //
What should not include whitespace? Correct Answer -
variable names and digits of a number
When did the industrial age start? Correct Answer - late 1700's
When did the information age start? Correct Answer - 1990's
What is an embedded computer? Correct Answer - text a
programmer adds to a program, to be read by humans to better
understand the code, but ignored by the program when executing.
What is a character? Correct Answer - s a letter (a, b, ..., z, A,
B, ..., Z), symbol (!, @, #, ...), or single-digit number (0, 1, ..., 9)
, What does ASCII stand for? and when was it developed? Correct
Answer - developed in 1963
American Standard Code for Information Interchange
How many bits per code does ASCII use? Correct Answer - 7
and has codes for 128 characters
Unicode Correct Answer - published in 1991 whose codes can
have more bits than ASCII and thus can represent over 100,000
items, such as symbols and non-English characters.
What is Pseudocode? Correct Answer - text that resembles a
program in a real programming language but is simplified to aid
human understanding.
What is an assignment statement? Correct Answer - Assigns a
variable with a value, such as x=5. That statement means x is
assigned with 5, and x keeps that value during subsequent
statements, until x is assigned again.
What is a variable declaration? Correct Answer - declares a
new variable, specifying the variables name and type.
example: variable type of integer holds whole number values.
userAge = 23
Integer values are automatically initialized with 0 until a value is
assigned
What is an identifier? Correct Answer - A name created by a
programmer for an item like a variable or function