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System calls are used whenever a program needs to access a restricted resource, eg a file on the hard disk, any hardware device, or when it needs to print or draw to the screen
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What are software needed to run the computer?
The software needed to run a computer is known as the Operating System. Many hardware platforms allow you to choose between multiple operating systems to suit your needs.
Factors in Operating System Design?
factors of operating system design
How do I uninstall your operating system to install a new system?
There is no uninstaller for an operating system. To remove an OS, simply format the partition that holds the operating system. If you use a boot manager to choose between different operating systems the software should automatically detect missing operating systems for you.
What is system objective?
what are the objective of operating system
Why did my computer suddenly restarts when it's not needed?
Because of some major problem.The most common one's of which are:Improper power supplyCorrupted Operating System FilesMalware Infection
When do you have windows operating system?
when it is needed
What is needed to perform an ASR restore in Windows XP?
Operating system CD
What is the difference between application software and an operating system?
Both are software, operating system is software that will make your computer boot up and run. while Application software is a program that will run on a functional operating system.
Why do kernel process need not to make system call?
when a process or anything makes a system call ,it goes in kernel(operating system).
What is meant by a system call in operating system?
A "System call" you be a function accessible from a programming language to the base hardware of the computer (eg to get the time).
What is a system call in computing?
System calls provide an interface between the process an the operating system. System calls allow user-level processes to request some services from the operating system which process itself is not allowed to d
Why are dual modes needed and how do system calls relate to the operating system and the concept of dual mode?
d
What is the use of system software?
System Software is the information needed to run the system. like config files and your O.S. (operating system).
Is there any need of Disk Operating System if we use a Windows operating system?
No there isn't. You can still access the Command Line through the various Windows operating systems, if there is anything needed to be done that way.
What do you call the programs that sorround the kernel of the operating system?
Shell Programs
What does Microsoft call its significant operating system patches?
Service packs.
What is process control block in operating system?
All of the information needed to keep track of a process when switching is kept in a data package called process control block.s A PCB is a data structure in the operating system kernel containing the information needed to manage a particular process. The PCB is the manifestation of a process in an operating system,
