Computer Systems - Lesson 4 - Operating Systems

What is the main function of an operating system?

• Manages the file system on the computer

• Controls access and security

• Provides the interface between the user and the computer

• Manages how data is received from inputs and to outputs

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

When did the Internet first come into existence?

• 2010

• 2000

• 1969

• 1989

Answer explanation

The correct answer is 1989 because that is when the Internet was first established for public use.

What programming language is used to add text elements and create the structure of the content of a web page?

• Python

• JavaScript

• CSS

• HTML

Answer explanation

CSS is used to add text elements and create the structure of the content of a web page.

What is the difference between the Internet and the World Wide Web?

• The Internet is used for communication between computers, while the World Wide Web is a collection of websites

• The Internet is a collection of websites, while the World Wide Web is used for communication between computers

• The Internet is a physical network, while the World Wide Web is a virtual network

• The Internet and the World Wide Web are the same thing

Answer explanation

The Internet is a collection of websites, while the World Wide Web is used for communication between computers

Who invented the World Wide Web?

• Mark Zuckerberg

• Steve Jobs

• Tim Berners-Lee

• Bill Gates

Answer explanation

The correct answer is Tim Berners-Lee, as he is the inventor of the World Wide Web. Mark Zuckerberg, Steve Jobs, and Bill Gates are not the inventors of the World Wide Web.

Which programming language is responsible for stylings such as background, colours, layouts, spacing, and animations?

• HTML

• CSS

• JavaScript

• Java

Answer explanation

CSS is responsible for stylings such as background, colours, layouts, spacing, and animations in web development.

Which programming language is commonly used for creating interactive effects on websites?

• HTML

• CSS

• JavaScript

• Python

Answer explanation

JavaScript is commonly used for creating interactive effects on websites, allowing for dynamic and engaging user experiences.

What is the purpose of a database management system (DBMS)?

• Organizing files on a computer

• Managing data in a structured way

• Creating animations on websites

• Designing user interfaces

Answer explanation

The purpose of a database management system (DBMS) is to manage data in a structured way, not to organize files on a computer, create animations on websites, or design user interfaces.

Who is known as the father of modern computer science?

• Alan Turing

• Charles Babbage

• Ada Lovelace

• Grace Hopper

Answer explanation

Alan Turing is known as the father of modern computer science, making him the correct choice.