1.5 Systems software

What is the primary function of an operating system?

• To create graphics

• To control the operations of a computer

• To write code

• To design websites

Answer explanation

The primary function of an operating system is to control the operations of a computer, managing hardware and software resources, enabling user interaction, and providing a platform for applications to run.

Which of the following is an example of an operating system?

• Microsoft Word

• Google Chrome

• Microsoft Windows

• Adobe Photoshop

Answer explanation

Microsoft Windows is an operating system that manages computer hardware and software resources. In contrast, Microsoft Word, Google Chrome, and Adobe Photoshop are applications that run on an operating system.

What does GUI stand for in user interfaces?

• General User Interface

• Graphical User Interface

• Global User Interface

• Guided User Interface

Answer explanation

GUI stands for Graphical User Interface, which refers to a user interface that includes graphical elements like windows, icons, and buttons, making it easier for users to interact with software compared to text-based interfaces.

What is the role of user management in an operating system?

• To manage files and folders

• To create and delete users

• To design user interfaces

• To compress data

Answer explanation

User management in an operating system primarily involves creating and deleting user accounts, which is essential for controlling access and permissions. This distinguishes it from file management, interface design, or data compression.

What is multitasking in an operating system?

• Running a single task at a time

• Executing multiple tasks simultaneously

• Designing multiple user interfaces

• Compressing multiple files at once

Answer explanation

Multitasking in an operating system refers to executing multiple tasks simultaneously, allowing users to run several applications at once, improving efficiency and resource utilization.

What is the purpose of file management in an operating system?

• To create graphics

• To manage user accounts

• To organize and manage files and folders

• To encrypt data

Answer explanation

The purpose of file management in an operating system is to organize and manage files and folders, allowing users to easily store, retrieve, and manipulate their data. This is essential for efficient data handling.

What does CLI stand for?

• Command Line Interface

• Computer Language Interface

• Centralized Logic Interface

• Common Language Interface

Answer explanation

CLI stands for Command Line Interface, which is a text-based interface used to interact with software and operating systems. The other options do not accurately represent the acronym CLI.

What is the function of encryption software?

• To compress files

• To scramble the contents of files

• To manage memory

• To create user interfaces

Answer explanation

The function of encryption software is to scramble the contents of files, making them unreadable without the correct decryption key. This ensures data security and privacy, unlike compression, memory management, or user interface creation.

What is data compression used for?

• To increase file size

• To reduce the size of a file

• To encrypt data

• To manage user accounts

Answer explanation

Data compression is used to reduce the size of a file, making it easier to store and transmit. This is essential for efficient data management and faster file transfers.

What is the purpose of defragmentation software?

• To delete files

• To break files into segments

• To rearrange file segments for better performance

• To encrypt files

Answer explanation

The purpose of defragmentation software is to rearrange file segments on a disk for better performance. This process helps to reduce the time it takes to access files by organizing them more efficiently, unlike deleting or encrypting files.