Computer Software Note Class 8

 

Page no. 60

Computer Software

4) Write very short answers of the following questions.

a.     Name the two broad types of computer software.
The two broad types of computer software are:
i) System Software
ii) Application Software

b.     Give one example of an Operating System.
One example of an operating system is Windows.

c.      What is the main purpose of Device Driver Software?
The main purpose of device driver software is to enable the operating system to communicate with and control hardware devices.

d.     Name one example of a compiler-based programming language.
One example of a compiler-based programming language is C.

e.      Give one example of a Word Processing Package.
One example of a word processing package is Microsoft Word.

 

5) Write short answers to the following questions:

a.     What is system software? List its four basic types.
System software is software that manages and controls the computer hardware and provides a platform for running application software. Its four basic types are:
i) Operating System
ii) Device Driver
iii) Utility Software
iv) Language Translator

b.     Differentiate between a Compiler and Interpreter based on any two points.
The two differences between Compiler and Interpreter are:

Interpreter	Compiler
It translates one line of instruction at a time.	It translates whole block of code at a time.
It is slower than compiler.	It is faster than interpreter.
Example: QBASIC	Example: C

c.      What is tailored software? Give one example.
Tailored software is software that is specially developed to meet the specific needs of a particular user or organization. One example of tailored software is Library Management System.

d.     Mention any two features of Open-Source Software.
Two features of open-source software are:
i) Its source code is freely available to users.
ii) Users can modify and redistribute the software freely.

6) Write long answers to the following questions:

a.     Explain the different types of system software with their functions and examples.

The different types of system software with their functions and examples are:

i)                Operating System (OS):

An operating system is system software that manages the overall operation of a computer.
Function: It manages the computer's hardware and software resources and provides a platform for running application programs.
Example: Windows.

ii)              Device Driver:

A device driver is system software that allows the operating system to communicate with hardware devices.
Function: It enables the operating system to communicate with and control hardware devices.
Example: Printer Driver.

iii)             Utility Software:

Utility software is system software designed to maintain and improve the performance of a computer.
Function: It helps maintain, protect, and improve the performance of a computer system.
Example: Antivirus Software.

iv)             Language Translator:

A language translator is system software that converts programs written in assembly language or high-level languages into machine language.
Function: It translates programs written in assembly language or high-level language into machine language so that the computer can understand and execute the program.
Example: C Compiler.

 

b.     What is Application Software? Explain its two types (Tailored and Packaged) with suitable examples.

Application software is software designed to solve the specific problem of user such as writing documents, calculating data, or browsing the internet.

The two types of application software are:

i)                Tailored Software (Customized Software):
Tailored software is specially developed to meet the specific needs of a particular user or organization.
Example: Library Management System, Payroll System, etc.

ii)              Packaged Software (General-Purpose Software):
Packaged software is pre-developed software designed for general use by many users.
Example: Microsoft Word, Adobe Photoshop, etc.