what are the main parts of operating system and their use
Answers
this has a task of loading the application into memory making sure they do not interface each other and allow them to share use of the cpu efficiently.
2. ( device drivers )
every piece of hardware that makes up the computer or connected to it. it will have a device driverthat allow operating systemto control and communicate with it.
3. ( use interface or [graphic use interface]
this part of operating system that user will see on screen and reacting to your key presses and other input.
4. ( pointer )
a symbol that appears on display screen and that you move to select objects and commands.
5. ( icons )
the small pictures that represent command , files and windows. by moving the pointer to the icon you can execute a commmands.
6. ( desktop )
the area on the display screen where icon are grouped is often referd to as desktop because icon are intended to represent real objects on real desktop.
7. ( windows )
you can divide the screen into different area. in each window you can run a different program or display a different information.
8. ( modes )
modern CPUs support multiple modes of operation. CPUs with this capability use at least 2 modes :protected mode or supervisor mode.
9. ( program execution )
the operating system provide an interface between an application program and the computer hardware so that an application programcan interact with hardware only by obeying rules.
10. ( interrupts )
interrupts are central to operating systems as they provide an efficient way for operating system to interact with and reacts to its environment.
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Operating system
Operating system is a system software that manages the software resources, Hardware devices and provides the common application services for computer system. Operating system installs the connection between Humans and Computers. Because of operating system only, we can perform work and give instructions to the computer.
In short, Operating system is a system software that creates the interface between computer and user. Operating system helps us to communicate with computers without knowing their language. It is not easy to use a computer system, mobile, TV any digital device without having operating system in it.
Operating system provides common services to computer system like File search, Calculator, Various in built apps, Word, Powerpoint and excel etc. Due to which, it becomes easy to use a computer system. If we use a computer system without OS, then we will just seeing Binary codes on our screen. Which aren't easy to get understood.
Features of Operating system:
- Resource the allocation of memory
- Protects the information and data inside the computer system
- Manages the memory
- Virtual multitasking
- Program execution
- Allows computer system with network
- Installs the connection between User and Computer.
Functions of Operating system:
- Memory Management
- File Management
- Device Management
- I/O management
- Networking
- Security
- Processor Management
- Secondary storage management
- Common interpretation
Types of Operating system:
- Multiprocessing OS
- Multitasking OS
- Batch OS
- Mobile OS
- Network OS
- Distributed OS
- Real Time OS
What is 32 Bit and 64 Bit ?
32 Bits system can handle ram only 3.2 GB of ram. 32 Bits system processes the data simultaneously and output in given in seconds. This systems required 32 bit CPU and OS.
64 Bits systems can handle ram upto 17 Billion GB. This systems processes the data in the bit of second. This are very simultaneous systems. This systems 64 bit CPU and OS.
Popular Operating systems for computer system:
- Windows - Versions: Windows 10, 8, 7, XP, 98...
- Apple OS - Versions: Mojave, Catalina, Mac OS X
- Linux - Versions - Red Hat, KDE....
- Ubuntu
- Chrome OS
- Fedora