What is a process in Operating System?
Answers
Answer:
Explanation:
A process is a program in execution. Process is not as same as program code but a lot more than it. A process is an 'active' entity as opposed to program which is considered to be a 'passive' entity. Attributes held by process include hardware state, memory, CPU etc.
Process memory is divided into four sections for efficient working :
The Text section is made up of the compiled program code, read in from non-volatile storage when the program is launched.
The Data section is made up the global and static variables, allocated and initialized prior to executing the main.
The Heap is used for the dynamic memory allocation, and is managed via calls to new, delete, malloc, free, etc.
The Stack is used for local variables. Space on the stack is reserved for local variables when they are declared.
A process in Operating system is program execution.
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