Sign In
process
CPU Scheduling and process scheduling
Submitted by inder on Sat, 17/01/2009 - 10:28.
A multiprogramming operating system allows more than one process to be loaded into the executabel memory at a time and for the loaded process to share the CPU using time-multiplexing.Part of the reason for using multiprogramming is that the operating system itself is implemented as one or more processes, so there must be a way for the operating system and application processes to share the CPU. Another main reason is the need for processes to perform I/O operations in the normal course of computation.
PCB (Process Control Block) definition and functions
Submitted by inder on Fri, 16/01/2009 - 23:49.
PCB is the Area in memory where the OS can find all the information it needs to know about a process,means PCB hold the information of all processes andkeep track of all the processes.
Various Process State modes
Submitted by inder on Fri, 16/01/2009 - 23:27.
During lifetime of process,it go through varius states of operations which are called mode or state of process.a operating system process can be in one of following state at a time:-
Process management
Submitted by inder on Fri, 16/01/2009 - 23:15.
Process management is one of the most important and relevant tasks in operating syste.
Process:-In operating systems, process is defined as “A program in execution”.Process can be considered as an entity that consists of a number of elements, including: identifier, state, priority, program counter, memory pointer, context data, and I/O request.Components of process are:-
Deadlock condition for resources
Submitted by inder on Fri, 16/01/2009 - 10:12.
A set of blocked processes each holding a resource and waiting to acquire a resource held by another process in the set.
The possible and necessary conditions:-
