About this Study Set
This study set covers Computer Science through
20 practice questions.
A set of knowledge-based multiple-choice questions covering fundamental computer science concepts suitable for pre-teens. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 20 questions from the
Computer Science Basics for Young Explorers study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
What is the smallest unit of information a computer can understand?
-
A
Byte
-
B
Megabyte
-
C
Bit
-
D
Kilobyte
2
Which of these is a popular programming language used to create websites?
-
A
Python
-
B
Scratch
-
C
JavaScript
-
D
Java
3
What is the main 'brain' of a computer called?
-
A
RAM
-
B
Hard Drive
-
C
Motherboard
-
D
CPU
4
What is a set of instructions that tells a computer what to do called?
-
A
Hardware
-
B
Algorithm
-
C
Software
-
D
Data
5
Which of these is an example of 'input' hardware?
-
A
Monitor
-
B
Printer
-
C
Keyboard
-
D
Speakers
6
What does 'CPU' stand for in computing?
-
A
Central Processing Unit
-
B
Computer Personal Unit
-
C
Central Power Unit
-
D
Computer Program Unit
7
In programming, what is a 'loop' used for?
-
A
To store data
-
B
To repeat a block of code multiple times
-
C
To display text
-
D
To connect to the internet
8
What is the temporary memory that a computer uses to run programs called?
-
A
Hard Disk Drive
-
B
SSD
-
C
RAM
-
D
USB Flash Drive
9
Which of these is a common 'output' device for a computer?
-
A
Microphone
-
B
Mouse
-
C
Webcam
-
D
Speaker
10
What is the term for a step-by-step procedure for solving a problem or completing a task?
-
A
Bug
-
B
Code
-
C
Algorithm
-
D
Variable
11
What is the physical part of a computer that you can touch?
-
A
Software
-
B
Data
-
C
Hardware
-
D
Program
12
Which visual programming language is popular for teaching coding to children?
-
A
C++
-
B
Scratch
-
C
Assembly
-
D
Fortran
13
What is a 'variable' in programming?
-
A
A type of computer hardware
-
B
A placeholder for data that can change
-
C
A mistake in code
-
D
A way to print to the screen
14
What is the main circuit board inside a computer that connects all the components?
-
A
CPU
-
B
RAM
-
C
Hard Drive
-
D
Motherboard
15
What does the 'G' in JPG (or JPEG) stand for in image file formats?
-
A
Graphics
-
B
Gigabyte
-
C
Generate
-
D
Global
16
Which of these is a non-volatile storage device that permanently stores data?
-
A
RAM
-
B
Cache Memory
-
C
Hard Disk Drive
-
D
Graphics Card
17
In computer networking, what does 'URL' stand for?
-
A
Uniform Resource Locator
-
B
Universal Remote Link
-
C
User Rights List
-
D
Underlying Resource Layer
18
What is a 'bug' in computer programming?
-
A
A type of computer virus
-
B
An error or flaw in the code
-
C
A piece of hardware
-
D
A way to save files
19
What is the process of converting human-readable code into machine-readable instructions called?
-
A
Debugging
-
B
Compiling
-
C
Running
-
D
Editing
20
What is the fundamental building block of digital circuits, representing either a 0 or a 1?
-
A
Byte
-
B
Word
-
C
Bit
-
D
Nibble
