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- 1Types of software: Two main types Application Software Systems Software (Operating Systems)
- 2Application SoftwareThese are pieces of software that perform a particular task such as word processing or desktop publishing.
- 3Systems Software (Operating Systems)These types of software control the running of hardware and the running of other software.
- 4Operating systemsAn operating system is a piece of software that controls the operation of the systems hardware and the running of other software.
The operating system, as we can see, is actually not one but a collection of programs that control the system. - 5The operating system is responsible for the management and control of all the computer’s resources. This includes memory, processors, hard drives, monitoring I/O devices, etc.It not only handles the system resources it also handles the application software that users run, security and file management.
It also provides a link between the hardware and software. - 6Popular operating systemsWindows
Windows CE
Macintosh OS (macOS)
iOS (iPhoneOS)
Linux - 7Operating Systems: Functions
- 8All operating systems have certain common functions:Memory management
File management
Security
Provision of an Interface
Input output
Error reporting
Utility software management - 9Memory ManagementUsually controls the system's RAM, controlling which locations in RAM programs are loaded into.
- 10File managementControls where and how files are saved onto backing storage.
The operating system handles the organisation and tracking of files and directories (folders). It also saves or retrieves these from a computer disk. - 11SecurityThe user is often running multiple processes and these processes must be secure.
The operating system maintains security and access rights of users. - 12Provision of an interfaceThis is the means of interacting with the user.
Most modern operating systems provide a GUI (Graphical User Interface). - 13Input outputControls the sending and receiving of data to and from peripherals.
- 14Error reportingProviding useful feedback to users when errors do occur.
- 15Utility software managementOther types of system software include utility software such as:
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- Karteikarten am Ohne Titel, erstellt von Tom Franklin am 16/05/2017.
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