Software and its type: BLE

 Software and its type:

Program:

The set of instructions that that can perform any particular task when executed is called a program.

Software:

The set of related programs, related data, files, documents is called software.

System Software:

The software that is particularly designed to perform the internal functions of the computer is called system software.

Application Software:

The software that is particularly designed to fulfill the requirements of the user is called application software.

 

System Software consists of:

 

Operating System:

                The system software that is responsible for controlling and managing hardware resources and different tasks in a computer system is called operating system. Eg. Windows, LINUX, UNIX, Android, IOS, Mac etc.

 

Functions Of Operating System:

• Responsible to run the computer
• Input Output management
• Process management
• Memory management
• Resource Allocation
• Time Sharing
• Security
• Command Interpreter
• Deadlock Prevention

 

 

Classification of Operating System on the Basis of User.

1. i) Single User Operating System

The Operating System that is designed for single user computer and can handle only one user at a time is called Single User OS. Eg Windows XP, Windows 7, LINUX, UNIX, etc

1. ii) Multi User Operating System

  The Operating System that can handle multiple users at a time is called Multi User OS. Eg Windows NT Server, OS/2, Novel Netware etc

 

Classification of Operating System on the Basis of User Mode

1. i) Single Tasking Operating System

      The Operating System that can perform only one task at a time is called Single Tasking Operating System. Eg MS-DOS, CP/M, Palm OS, Windows up to Win95 

1. ii) Multitasking Operating System

The Operating system that can perform more than one task at a same time is called Multi Tasking Operating System. Eg. Windows XP, Windows 7, Windows 8, Windows 8.1 Mac, Linux etc

 

Classification of Operating System on the Basis of Interface

1. i) GUI Based OS

      The Operating System that uses graphical objects (icons, menus, windows, pointers) to interact with the computer is called GUI based Operating System. Eg. Windows XP, Windows 8, Mac OS etc.

1. ii) CUI Based OS

      The Operating System that uses command lines (instructions in the form of text)  to interact with the computer is called CUI based Operating System. Eg. Ms DOS, Apple DOS, UNIX

 

 

 

Language Processor:

      Language processor is the system software that translates written program into Machine Level Language.

 

Types Of Language processor:

1. i) Assembler:

      The language processor that translates program written in Assembly level language into machine level language is called Assembler.

1. ii) Compiler:

      The language processor that translates program written in High Level Language into machine level language whole program at once is called Compiler. Eg. C, C++ etc

iii) Interpreter:

      The language processor that translates program written in High Level Language into machine level language statement by statement is called interpreter. Eg. Java, QBASIC, Python etc.

Utility Software:

                Utility Software is system software that takes care and maintains the computer system and keeps the computer in good working condition. It performs the house keeping jobs of the computer. Eg. Antivirus, WinZip, Folder Lock etc.

 

Device Drivers:

Device driver is system software that links the operating system with peripheral devices (external devices like printer, scanner, keyboard, mouse).

Device driver is system software that makes the logical connection between the computer and external hardware devices.

Classification Of Application Software:

1. i) Packaged Application Software
2. ii) Customized OR Tailored Application Software

Difference between Packaged and Tailored Application Software.

 

Packaged Application Software	Customized Application Software
i) The application software that is designed to fulfill the requirements of the general public users is called Packaged Software.	i) The application software that is specially designed to fulfill the specific requirements of specific users is called Customized Software
ii) It has many features.	ii) It has required limited features.
iii) It is cheap in price.	iii) It is expensive than that of packaged software.
iv) Eg. Ms Office, VLC media player, Adobe Photoshop etc	iv) Eg. SEE result publishing software, Banking Software