UNIX Kernel--Process Management
The UNIX system kernel is the master organizer of UNIX. The kernel schedules processes, allocates memory and disk storage, supervises the transmissions of data between the main storage and the peripheral devices, and honors the processes' requests for service. The traditional UNIX system kernel addresses three major tasks: process management; device management; and file management. These three areas remain central, but dramatic advances in hardware and software have expanded the role of the kernel. Today's kernels usually provide these additional services: virtual memory, networking, and network file systems. Additional kernel features that exist in some versions of UNIX, but that are not universally available include multiprocessor support and lightweight process support. This paper will focus on process management. This includes starting processes, scheduling processes, swapping processes to disk, allocating resources such as memory and honoring processes' requests for service. A process is a program that is being executed. For a given program, there may be any number of processes running at a particular time. When we speak of a process, we are talking about something that is active,
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Some common words found in the essay are:
I/O I/O, Management UNIX, process table, system call, unix system, user table, child process, demise child, kernel mode, user mode kernel, unix system kernel, wait demise child, wait system call, demise child process, processes process, program text, wait system,
Approximate Word count = 1523
Approximate Pages = 6 (250 words per page double spaced)
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