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- 1custom written softwaresome times known as bespoke software
- 2Multi-taskingmost systems commonly have several programs
The operating system will also be running lots of background tasks - 3user interfaceoperating system needs to provide a means of communicating with them.
this means making it possible for the user to issue commands
the user interface is the way in which users interact with computer hardware - 4Functions of OSMulti-tasking/ process Management
User interface
Memory Management
Peripheral Management
Security - 5Off the shelf softwaresometimes called shrink-wrapped software
can be bought from supplier already boxed up and ready to install
the software is often sold in substantial quantities - 6Securitythis normally involves users having user ids and passwords
operating systems also handle file privileges these are right assigned to user and groups
this control who can read/write and files. - 7peripheral Managementperipherals are any computer hardware components that are not part of the CPU i.e. input, output or storage devices.
- 8Memory Managementthe operating system must manage where in memory the programs will go.
when a program is running it must be in the computers main memory (RAM). The main memory has a finite size.
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- Karteikarten am Ohne Titel, erstellt von Jack Wild am 12/12/2014.
- Erstellt von
- Jack Wild
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