What is a Software?
Software refers to the program and instructions that tell a computer what to do, which helps it to perform a specific tasks, as opposed to the Physical hardware.
Class 11 Computer Science - Software Concepts
Welcome to the short notes and overview for Class 11 Computer Science, Chapter: Software Concepts.
Short Notes
Types of Software:-
Here are 4 types of software:-
- System Software = Control machine to organise
- Programming Software = For running code/programming
- Application Software = For extra work
- Malicious Software = To damage/harm the computer.
Classification of Software:-
Classification of Software
Operating System:-
Operating System Overview
- Manages the hardware.
- Processor task distribution.
- Devices ready to work.
- Translates the language.
Ex: Windows, MacOS, Android, IOS
Device Driver:-
It works as a sync between hardware and Operating System (OS).
Utilities:-
Camera, Calculators, etc.
Application Software:-
For extra work (above of basic)
Video Editor, MS Excel, etc.
General purpose of Application Software:-
- Word Processor
- Presentation Software / Tool
- Spreadsheet Package
- Database Management System
- Desktop publishing System
Specific Purpose of Application Software:-
- Inventory Management System
- Human Resource Management System
- Payroll System
- Financial Accountancy
- School Management System
- Hotel Management System
- Reservation System
- Weather Forecasting System
System Software:-
- Manage Resources
- Operation / Task perform
- Connects hardware to OS
Definition of Operating System (OS):-
Definition of Operating System 1
It is a Program which executes various things to operate.
Definition of Operating System 2
Need of Operating System (OS):-
- Input / Output Management
- Memory Management
- Resource Management
- Security Management
- Command Interpreter
- File Management
Types of Operating System (OS):-
- Real Time Operating System (RTOS) = For Immediate Response
- Ex: Aircraft, Medical Equipment
- Hard Real Time Operating System = Having time deadline
- Soft Real Time Operating System = Time delay possible
- Single User Operating System
- Multi User Operating System
- Multi Tasking Operating System
- Multi tasking OS has Two types:-
- Pre-Emptive Multi Tasking OS
- Cooperative Multi Tasking OS
Functions of Operating System:-
- Process Management
- File Management
- Memory Management
- Storage Management
- Device Management
User Interface:-
- Character User Interface (CUI)
- Graphical User Interface (GUI)
Language Processor:-
- Assembler
- Assembly level language
- Interpreter
- HLL ---> MLL
- Translate line by line
- Compiler
- HLL ---> MLL
- Translate complete at once
Compression Tools:-
Eg: Winrar
File ---> encode(compression) ---> zip file ---> Decode (Extract) ---> Real State
Disk Management Tools:-
- Disk Cleanup
- Disk defragmentation
- Backup
Antivirus (Virus cleaner):-
To keep safe from malicious software
File management Tools:-
File Explorer
Text Editor:-
MS Word