1. categories software
1.1. open source
1.1.1. software provided for use, modification and redistribution
1.1.2. advantages
1.1.2.1. source code is available to user
1.1.2.2. customers can personalize the software to meet their need
1.1.3. disadvatages
1.1.3.1. no one is responsible to the software
1.1.3.2. the software is not guaranteed to be save from threats like programming bugs and viruses
1.2. proprietary
1.2.1. is software that is privately owned and limited to a specific vendor or computer device model
1.2.2. license / paid
1.2.3. advantages
1.2.3.1. full support from vendor if anything happened to the support
1.2.3.2. the software is guaranteed to be safe from threats like programming bugs and viruses
1.2.4. disadvantages
1.2.4.1. source codes is not available to user
1.2.4.2. user must pay to get the proprietary software
2. system software
2.1. operating system
2.1.1. definition
2.1.1.1. an operating system (OS) is a set of programs containing instructions that work together to coordinate all the activities among computer hardware resources
2.1.2. types of OS
2.1.2.1. Stand alone Operating System
2.1.2.2. Server Operating System
2.1.2.3. Embedded / Mobile Operating System
2.1.3. functions
2.1.3.1. start and shutdown a computer
2.1.3.2. provide a user interphase
2.1.3.3. manage program
2.1.3.4. manage memory
2.1.3.5. coordinate tasks
2.1.3.6. configure device
2.1.3.7. establish an internet connection
2.1.3.8. monitor performances
2.1.3.9. provide files managements and other utilities
2.1.3.10. automatically update
2.1.3.11. control a network
2.1.3.12. administer security
2.2. utility program
2.2.1. utility programs is a type of system software that allows user to perform maintenance-type tasks
2.2.2. types of utility program
2.2.2.1. file manager
2.2.2.2. disk cleanup
2.2.2.3. compression tools
2.2.2.4. anti-virus program
2.2.2.5. spyware remover
2.2.2.6. disk defragmenter
2.2.2.7. backup and restore
3. application software
3.1. functions
3.1.1. make business activities more efficient
3.1.2. to assists with graphics and multimedia project
3.1.3. to support home , personal and educational tasks
3.1.4. to facilitate communication
3.2. types
3.2.1. web browser
3.2.1.1. internet explorer
3.2.1.2. chrome
3.2.2. word processing
3.2.2.1. microsoft office word
3.2.2.2. KWord
3.2.3. spreadsheet
3.2.3.1. microsoft office excel
3.2.3.2. KCells
3.2.4. database
3.2.4.1. Oracle DB
3.2.4.2. MariaDB
3.2.5. presentation
3.2.5.1. Microsoft office powerpoint
3.2.5.2. Showcase
4. definitions
4.1. series of instructions that tells a computer what tasks to perform and how to perform them
5. types
5.1. system software
5.1.1. consist of the programs (set of instructions)that control or maintain the operations of computer and its devices
5.2. application software
5.2.1. consist of programs (set of instructions) designed to make users more productive and/or assist them with personal tasks