IGCSE Computer Science Paper-1: Specimen Questions with Answers 46 - 48 of 164

Question number: 46

Edit

Short Answer Question▾

Write in Short

What is the meaning of a Node in Data Structure?

Explanation

Image of The Node in Data Structure

Image of the Node in Data Structure

Node in Data Structure is defined as each item in a linked list.

i) It is the basic unit of a data structure.

ii) The Data structure can be a linked list or tree data structure.

iii) In Data Structure a binary tree is made up of nodes where each node contains a “left” reference, a “right” reference, and a data element. The topmost node in the tree is called the root. Each node is connected by exactly another node and this node is known as the Parent.

Question number: 47

Edit

Short Answer Question▾

Write in Short

List three advantages of GUI or a Graphical User Interface?

Explanation

A Graphical user Interface provides users with immediate feedback and the effect of each action taking place during loading of programmes and files.

Use of a GUI also ensures higher productivity and accessibility during loading of programmes and files.

Well-designed GUI with standard formats help in representing graphics and text also.

Question number: 48

Edit

Short Answer Question▾

Write in Short

List three functions of an Operating System.

Explanation

Aon Operating system is defined as the system software that is responsible for managing software resources, computer hardware apart from providing common services for computer programmes.

Image of The Operationg System

Image of the Operationg System

An Operating System is responsible for providing environment for the software applications to function. For example In GUI operating systems such as Windows and macOS, applications run within a consistent, graphical desktop environment.

An Operating System also takes care of the hardware components for example how busy Central Processing Unit is, how quickly our hard drives retrieve data, or how much data our network card is sending etc.

An Operating System also helps in viewing file and folder listings and manipulate on those files and folders like (move, copy, rename, delete etc).

Choose Paper