Section 1
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Computer languages designed to be used and understood by humans are
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Last updated
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Date created
Mar 1, 2020
Cards (52)
Section 1
(50 cards)
Computer languages designed to be used and understood by humans are
High-level languages
Which of the following is not an example of secondary memory?
RAM
Variables store information that always remain constant during program execution.
False
Random Access Memory or RAM is a type of secondary memory.
False
Use of a sentinel value (like requiring the user to press '0') is an example of a graceful way to exit a loop.
True
Which is the following is true about procedural and object-oriented programming (the best answer).
Procedural programs concentrate on the actions performed with data; Object -oriented programs focus on objects and their behaviors and attributes.
A rectangle in a flowchart diagram represents a program process.
True
What is the fundamental question of computer science?
What can be computed?
Since floating point numbers are more accurate, they are always better to use than ints.
False
The CPU is sometimes referred to as the "brain'' of the computer.
True
A function definition is a sequence of statements that defines a new command.
True
A variable is used to give a name to a value so it can be referred to in other places.
True
A program that endlessly loops is representative of good program design.
False
Evaluate: int(float(3))
3
An algorithm contains three parts:
Input,Process,Output
The sqrt function computes the squirt of a number.
False
What is the result of evaluating 3 + 4.0
7.0
A chaotic function can't be computed by a computer.
False
One difference between a compiler and an interpreter is
A compiler is no longer needed after a program is translated.
Which of the following is not true of comments?
They make a program more efficient
In Python 3 when the size of an integer grows beyond the size calculable by the CPU (like our in class example of 100!), what does Python 3 automatically do?
uses more memory to store the integer
What list is created when Python evaluates range(1,7,2)?
[1,3,5]
Logic errors are the result of incorrectly typing in a Python command or statement. Such are forgetting to type in a : after a function definition.
False
A syntax error is a?
Misuse of a language's grammar rules.
The syntax of a language is its meaning, and semantics is its form.
False
The Python data type that represents positive and negative whole numbers is
int
A programming environment refers to the office where programmers work.
False
The int data type in Python is identical to the mathematical concept of integer.
False
A loop is used to skip over a section of a program.
False
Evaluate: round(3.5)
4.0
Computer science refers only to the 'study of computers'.
False
A statement is
a complete computer command
Two tools often used to help plan and design the logic of a program are:
Pseudocode and Flowcharts
Evaluate: int(4.9)
4
Which of the following is not an example of a function from the Python math library?
abs(number)
Which of the following is not a built-in Python operation (which one requires an import of a library)?
sqrt( )
Pseudocode is often a precise but plain English description of the steps that a program will take to solve a problem.
True
Evaluate: float(int(4.5))
4.0
Information that is stored and manipulated by computers is generically referred to as data.
True
An algorithm is like a
recipe
In Python, 4+5 produces a result with the same data type as 4.0+5.0.
False
All information that a computer is currently working on is stored in main memory.
True
The best way to develop a new piece of software is to just start writing code.
False
The number of distinct values that can be represented using 5 bits is
32
To do addition and subtraction functions in Python, we have to import the Math library (import math)
False
The LOGIC of a piece of code is what?
Sequence of specific instructions in a certain order.
In the hardware of the computer itself, numbers are represented as binary numbers.
True
By convention, the statements of a program are often place in a function called
main
When used for calculations, the most appropriate data type for storing the value of pi is:
float
In a computer, an integer data type can represent infinitely large integers.
False
Section 2
(2 cards)