In UNIX, processes are created using the fork()
system call, which creates a new process by duplicating the calling process. The new process, known as the child process, can then execute a different program using the exec()
family of functions. Processes are deleted when they complete their execution, or they can be terminated by another process using the kill()
system call, which sends a signal to terminate the specified process. Once a process terminates, its resources are reclaimed by the operating system, though it may remain in a "zombie" state until its parent process retrieves its exit status.
as we all know when computer is booted first it search the operating system like Windows, linux etc to the Hard disk and then with the help of the operating system computer start his works and when a process or program is to be started by the user, it first go to the RAM and operating system takes the process from RAM and then doing his own further work. RAM is a storage for temporarily process that is read by the operating system and when computer shut down then all processes and programs which are in RAM, automatically deleted. Through the various types of processes operating system works from different types of processes.
VM - operating system - was created in 1972.
RMX - operating system - was created in 1980.
SHARE Operating System was created in 1959.
Pick operating system was created in 1965.
Solaris - operating system - was created in 1992.
Idris - operating system - was created in 1979.
OASIS operating system was created in 1977.
On MS platforms, the system partition is used to hold the boot files. The boot partition holds all the windows operating system files. Leave it to Microsuck to mis-lable the partition hiearchy. The system partition holds what is loaded and executed first after the computer runs through its preliminary BIOS boot sequence. It tells the computer where to start loading the operating system from; the boot partition. The boot partition is where all the program files (thousands of them) needed by the operating system are stored. If the system partition is deleted; the computer will not find the operating system. If the boot partition is deleted, again; the computer will not find the operating system.
Myarc Disk Operating System was created in 1987.
Incognito - operating system - was created on 2008-01-26.
AROS Research Operating System was created in 1997.