1. OPEN SOURCE SOFTWARE
1.1. source code is available to user
1.2. software provided for use,modification and redistribution
1.3. user can install software freely into any computer
2. PROPRIETARY SOFTWARE
2.1. source code is not available to user
2.2. software cannot be modify or redistribution
2.3. users must have a license (with cost) from vendor before install into computer
3. SYSTEM SOFTWARE
3.1. the programs that control or maintain the operations of the computer and its devices
3.2. OPERATING SYSTEM
3.2.1. A set of programs containing instruction that work together to coordinates all the activities among the computer resources
3.2.1.1. stand-alone operating system
3.2.1.1.1. complete operating system that works on a desktop computer,notebook computer or mobile computing device
3.2.1.2. server operating system
3.2.1.2.1. an operating system that is designed specifically to support a network
3.2.1.3. embedded/mobile operating system
3.2.1.3.1. resides on a ROM chip on a mobile device or consumer electronic device
3.2.1.4. FUNCTION
3.2.1.4.1. Start and shut down computer
3.2.1.4.2. provide user interface
3.2.1.4.3. manage program
3.2.1.4.4. manage memory
3.2.1.4.5. coordinate tasks
3.2.1.4.6. configure device
3.2.1.4.7. establish an internet connection
3.2.1.4.8. monitor performance
3.2.1.4.9. provide utilities
3.2.1.4.10. automatically update
3.2.1.4.11. control a network
3.2.1.4.12. administer security
3.3. UTILITY PROGRAMS
3.3.1. a type of system software that allows a user to perform maintanance-type task
3.3.1.1. file manager
3.3.1.1.1. provide routine management task
3.3.1.2. disk cleanup
3.3.1.2.1. search and remove unnecessary files
3.3.1.3. compression tools
3.3.1.3.1. shrink sizeof file
3.3.1.4. anti-virus program
3.3.1.4.1. protect a computer against viruses by identifying and removing any computer viruses
3.3.1.5. spyware remover
3.3.1.5.1. detect and delete spyware
3.3.1.6. disk defragmenter
3.3.1.6.1. reorganize file and unused space on computer so that OS access data more faster
3.3.1.7. backup and restore
3.3.1.7.1. allow user to copy files to another storage medium in case of damage or loss
4. APPLICATION SOFTWARE
4.1. Programs designed to make users more productive and assist with personal task
4.1.1. web browser software
4.1.1.1. allow user to access and view web pages or access web 2.0 programs
4.1.1.1.1. internet explorer , safari
4.1.1.1.2. Mozilla firefox
4.1.2. word processing software
4.1.2.1. allow users to create and manipulate documents
4.1.2.1.1. microsoft word
4.1.2.1.2. KWord
4.1.3. spreadsheet software
4.1.3.1. allow users to organize data in rows and performs calculations
4.1.3.1.1. microsoft excell
4.1.3.1.2. KCells
4.1.4. database software
4.1.4.1. allow users to create,access and manage database
4.1.4.1.1. microsoft access
4.1.4.1.2. MariaDB
4.1.5. presentation software
4.1.5.1. allow users to create visual aids for presentations to communicate ideas,messages and other information to a group
4.1.5.1.1. microsoft powerpoint
4.1.5.1.2. showcase