Software
1. Operating System 2. Utilities
3. Device Drives 4. Language Translators
1. Operating System :
* An Operating system is software which manages computer hardware and software resources. * The operating system in an essential component of the system software in a computer system.
2. Utilities :
* Utilities software is system software which is manufactured to help, analyze, configure, otimize or to maintain a computer.
* It also helps in maintenance and problem solving of a computer.
Common types of utility programs :
* Hardware utilities * Virus- detection and recovery
* file compression Utilities * Spam and pop- up blocker utilities
* Backup * Uninstall
3. Device Drivers :
* Device driver is actually a communication device between device and compution.
* It loads every time in memory.
* When a new device is added the driver should be installed in order to run the program.
Features of system software
* Close to system * Difficult to understand
* Fast in speed * Less interaction
* Difficult to design * Smaller in size
* Difficult to manipulate * Generally written in low level language
2. Application of Software:
* Actually the application software consists of programs that are designed to make users more comfortable or productive to assists personal tasks.
* The application software is present on computer hand disk.
* Application software can also be stored on CDs, DVDs, and flash or keychain devices.
Types of Application Software:
* Proprietary: Proprietary software is a licensed software under exclusive legal right of owner.
* In - House : In in- house software we develop application with the help of company resources.
* Off- the- shelf : An existing software program that can be used without any changes expected.
* Contract : The software which is developed for a specific company for their requirement.
Forms of Application software :
* Package software : A software which is sold in a bundle due to similar function of program. e.x Microsoft office, Windows CD.
* Custom Software : This is software which is specially made for an organization as per their requirement. e.g 1. Attendance System
2. security Code System.
* Web Application : A web application is any application that uses a web browser. e.g Google Docs, Drop Box.
* Open Source Software : Open source software is made available to every one can be change, modify and distribute to public without any notification. e.g Linux, Moodle, WordPress, Drupal.
* Free Ware : Free ware is the software that is freely available to public but author has a copy right means that you can only use it, not sell it. e.g Antivirus.
* Share Ware : Share ware is actually delivered free of charge but sometimes the owner ask for money to get registered so that they can send updates in future. It can be copied but cannot be sold. e.g Dino Numbers, Microsoft Office.
* Public Domain Software : Public domain software is totally free and it is not copyrighted plus it have no restriction. e.g SQ Lite, Blast, 12P.
Categories of Application Software :
* Business Software * Graphic & Multimedia
* Home/ personal/ Education * Communication.
