1. types of software
1.1. system software
1.1.1. consist of programs control or maintain the operation of computer and its device
1.1.2. types :
1.1.2.1. operating system
1.1.2.1.1. i. server os
1.1.2.1.2. ii. stand-alone os
1.1.2.1.3. iii. mobile os
1.1.2.2. utility program
1.1.2.2.1. file manager
1.1.2.2.2. disk defragmenter
1.1.2.2.3. anti-virus software
1.1.2.2.4. spyware remover
1.1.2.2.5. backup and restore
1.1.2.2.6. disk cleanup
1.1.2.2.7. compression tools
1.2. application software
1.2.1. to make user more productive and assist with personal tasks
1.2.2. types :
1.2.2.1. spreadsheet software
1.2.2.1.1. allow user to oraganize data in rows and columns and perform calculation
1.2.2.2. web browser software
1.2.2.2.1. allow user to access and interact with software from any computer and device connected to internet
1.2.2.3. word processing software
1.2.2.3.1. to create and manipulate documents
1.2.2.4. database software
1.2.2.4.1. to create,access, and manage database
1.2.2.5. presentation software
1.2.2.5.1. create visual aids for presentation
2. definition
2.1. consists of series of related instructions, organized for a common purpose that tells the comoputers what task to perform and how to perform them
3. function of operating system
3.1. start and shutdown the computer
3.1.1. process of starting or restarting computer called booting : i. cold boot ii. warm boot
3.2. manage program
3.2.1. manage multiple programs and processes while using computer
3.3. manage memory
3.3.1. optimize the use of RAM
3.4. provide a user interface
3.4.1. enter data and instruction and how information displayed on screen
3.5. monitor performance
3.5.1. that assess and reports information about various computer resources and devices
3.6. establish an internet connection
3.7. control network
3.7.1. server OS organize and coordinate how multiple users access and share resources on a network