Sign In

Computer Science for IGCSE & O level - Software (Section 1)

1
What is the purpose of an operating system's kernel?
Answer
(B)
To manage the hardware and provide core services.
2
What is the main goal of disk defragmentation?
Answer
A
D
3
What happens during the 'decode' stage of the Fetch-Decode-Execute cycle?
Answer
(C)
The instruction is translated into commands the CPU can understand.
4
Which of the following features is commonly found in an IDE's code editor?
Answer
A
B
5
What does the acronym 'GUI' stand for?
Answer
(C)
Graphical User Interface
6
What is the main function of the Task Manager in an operating system?
Answer
(C)
To provide information about running processes and system performance.
7
What does 'RAM' stand for?
Answer
(A)
Random Access Memory
8
What are the advantages of high-level programming languages?
Answer
A
D
9
What component of the operating system is responsible for managing the computer's memory?
Answer
(B)
The Memory Manager
10
What is the main function of a 'compiler'?
Answer
(B)
To translate the entire program into machine code.
11
What is the function of a buffer?
Answer
A
C
12
In the context of programming languages, what is assembly language?
Answer
(B)
A machine-level programming language.
13
In software development, what does syntax highlighting contribute to?
Answer
(B)
Improved readability of the code.
14
What do you need to use to write a computer program?
Answer
B
C
15
What is the main function of a compiler?
Answer
(A)
To translate high-level language code into machine code.
16
What is a key function of the operating system in managing user accounts?
Answer
(A)
Creating, deleting, and modifying user accounts
17
What does the term 'machine code' refer to?
Answer
(C)
Binary instructions directly understood by the CPU.
18
What is the primary function of an operating system's 'memory management' component?
Answer
(B)
To allocate and deallocate memory resources.
19
Which of the following is an example of system software?
Answer
(C)
Windows 11
20
What is the primary goal of 'compiling' a program?
Answer
(B)
To translate it into machine code.
21
What type of software is responsible for translating source code into machine code?
Answer
(B)
Compiler
22
Which of the following best describes an interpreter?
Answer
(B)
It translates and executes code line by line.
23
What is the main function of a screen saver?
Answer
(A)
To protect the screen from burn-in and display a visual when the computer is idle.
24
What does the assembler do?
Answer
(B)
Translates assembly language into machine code.
25
Which interface type is most suitable for a user who has little or no knowledge of how the computer works?
Answer
(B)
Graphical User Interface (GUI)
26
What is the core function of a CPU (Central Processing Unit)?
Answer
(B)
To execute instructions.
27
In the Fetch-Decode-Execute cycle, what occurs during the 'decode' stage?
Answer
(C)
The instruction is translated into actions the CPU can perform.
28
In a simple program using Scratch, what action would the block 'say [Hello] for [2] seconds' perform?
Answer
(C)
It would display 'Hello' on the screen for two seconds.
29
What is the function of the 'BIOS' or 'UEFI' in a computer?
Answer
(C)
To initialize hardware and start the operating system.
30
In programming, what is the main benefit of 'auto-completion'?
Answer
(C)
Faster coding and reduced errors.
31
What is a key function of an API?
Answer
(B)
To enable communication between different applications.
32
What is the role of a memory management function within an operating system?
Answer
(B)
To allocate and deallocate memory to different processes.
33
What is the function of an antivirus program?
Answer
(C)
To detect and remove malware.
34
Which component of the OS is responsible for managing files and directories?
Answer
(B)
The File Manager
35
Which of the following is a task of an assembler?
Answer
(A)
Translate source code to machine code.
36
What is a buffer used for?
Answer
(B)
To temporarily store data while transferring it between different devices or processes
37
What does 'code formatting' mean in an IDE?
Answer
(C)
Organizing the code to improve readability.
38
Which feature in an IDE can provide suggestions for fixing errors?
Answer
(C)
Error diagnostics and auto-correction
39
What does the Fetch-Decode-Execute cycle do?
Answer
(C)
Describes how the CPU processes instructions.
40
Which software category does a web browser belong to?
Answer
(C)
Application software
41
What is the main function of a kernel?
Answer
(C)
Managing the computer's core resources.
42
Which of the following is a characteristic of high-level programming languages?
Answer
B
D
43
In the context of an IDE, what function does a 'debugger' serve?
Answer
(C)
To find and fix errors.
44
What does the abbreviation 'BIOS' stand for?
Answer
(A)
Basic Input Output System
45
Which of the following is a typical feature of an Integrated Development Environment (IDE)?
Answer
(C)
A code editor.
46
Which of the following are features of a command-line interface?
Answer
B
C
47
Which of the following is a primary disadvantage of high-level languages?
Answer
(B)
Programs can take longer to write.
48
Which of these best describes the function of an interpreter?
Answer
(B)
Executes code line by line after translation.
49
What is the primary function of the 'shell' in an operating system?
Answer
(A)
To provide the user interface.
50
What is a primary purpose of an IDE?
Answer
(B)
To provide a comprehensive environment for writing and debugging software.