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What resources are used when a thread created? How do they differ from those when a process is created?
When a thread is created the threads does not require any new resources to execute the thread shares the resources like memory of the process to which they belong to. The benefit of code sharing is that it allows an application to have several different threads of activity all within the same address space.Where as if a new process creation is very heavyweight because it always requires new address...
krisgroup
- Oct 22nd, 2007
hi,Adding to above one more important thing to keep in consideration,even threads share the same address space of the process, each thread has its own stack so if u are running multithreading program ...
sagar.singh
- Aug 23rd, 2007
Thread:In case of thread only one copy of resources are made. means Resources are shared between different threads. This is done on a synchronised basis.Process:A separate instances of resources are alloted to different processes at same time and they are not synchronised.
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What is distributed Systems?
Distribute the computation among several physical processors.Loosely coupled system – each processor has its own local memory; processors communicate with one another through various communications lines, such as high-speed buses or telephone linesAdvantages of distributed systems:->Resources Sharing ->Computation speed up – load sharing ->Reliability->Communications
pallvi sharma
- Dec 7th, 2007
Distributed system in genral refers to n/w o.s in which various systems (computers) are connected to sharing some of resources like printer etc. Each system have own data (including files etc) and whe...
vigrem
- Jul 26th, 2007
Distributed computing is a method of computer processing in which different parts of a program run simultaneously on two or more computers that are communicating with each other over a network. D...
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What is the cause of thrashing? How does the system detect thrashing? Once it detects thrashing, what can the system do to eliminate this problem?
Thrashing is caused by under allocation of the minimum number of pages required by a process, forcing it to continuously page fault. The system can detect thrashing by evaluating the level of CPU utilization as compared to the level of multiprogramming. It can be eliminated by reducing the level of multiprogramming.
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What is difference between win95, 98, 2000, and NT? What is difference between unix and linux? Difference between windows and unix?
ravikumar_koyyada
- Jan 19th, 2007
Diff between unix and linux is that linux is look alike of unix which is freely available.Linux is based on the principles of FSF(free software foundation) and whose use is subject to GPL.Every applic...
Neel
- Nov 23rd, 2006
Difference between Win95,98,2000,NTwin95 and 98 is not networking based but win 2000 and NT are networking base OS and can be made multiuser.
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What is the difference between synchronization and mutual exclusion?
Jared Southern
- Sep 23rd, 2011
As I understand it, and I'm just revising it, Conditional synchronisation is the mechanism that allows one to achieve mutual exclusion in a program.
Regards
Jaredrakesh trichy
- Oct 11th, 2008
Mutual Exclusion:1. Lock and unlock operations are always performed by the same thread. 2. Thread blocked on semaphore cannot be awakened by a signal. Synchronization: 1. Lock and unlock operations...
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What is boot processing computer
dishaV
- Feb 16th, 2008
As soon as the CPU is turned on, it initializes itself and looks for ROM BIOS for the first instruction which is the Power On Self-Test (POST). This process checks the BIOS chip and then the CMOS RAM....
ganesh_mys11
- Jan 14th, 2008
The computer startup is known as boot processing of computer. Booting will start from BIOS & CMOS.In booting there are 5 stages.
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Windows 2003 Group policy
What is group policy and how can it be defined in windows 2003 for users
tdpanee
- Feb 24th, 2010
Group policy objects can be used to restrict software to the group of computers, group of user. It also allows us restrict the profile settings, desktop settings. Group policy can be used to distrib...
mahenderthakur
- Dec 28th, 2009
GROUP POLICY is used to implement security and policies to a user account and computer. We can make most of changes from Group Policy.
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Page replacement algorithms
Which is the best page replacement algorithm and y?
sneha
- Sep 10th, 2018
LRU pace replacement algorithm
rakesh trichy
- Oct 11th, 2008
The Optimal Page Replacement Algorithm:The best possible page replacement algorithm is easy to describe but impossible to implement.
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What is the difference between x86 and i386 computer
brian4gb
- Mar 5th, 2008
x86 refers to a popular set of instructions most commonly used in processors from Intel, AMD, VIA, and others. It usually implies a binary compatibility with the 32-bit instruction set of the 80...
prasad.khalatkar
- Mar 4th, 2008
X86 Is A Hardware Architecture Used By Intel Based CPU's While I386 Is The File Folder Resides In Windows Installation CD, Contains All The Necessary Windows Installation Files.
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OS process management
what is the difference between UNIX and windows in process management
anupam_vats
- Jun 12th, 2008
unix process is open for locking and windows pm blocked , you cant change anything.regardsAks
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What's new in Windows 2008 server?
What is deference windows 2000 server and windows 2003 server?What is deference windows 2000 pro and windows xp pro?what is new in windows 2008 server?
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How we can say unix has greater flexibility than windows?
rakesh trichy
- Oct 10th, 2008
UNIX is also a very flexible operating system, both for system administrators and users. Program names can be changed, aliases can be defined. Arguments to programs can also be changed. New programs c...
rakesh trichy
- Oct 10th, 2008
Unix is more flexible and can be installed on many different types of machines, including main-frame computers, supercomputers and micro-computers. Unix you have in general the option of using either ...
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Starvation
What is Starvation? How starvation is avoided in UNIX and WINDOWS Operating System?
raj_smart
- Jul 2nd, 2009
The solution to starvation is to include the process of "Aging". The idea is to change the priority of a process as a time goes by. This can be done by reducing the priority of higher priority processes or by raising the priority of starved processes.
karan_gtnit
- Feb 22nd, 2009
Starvation takes place when a low-priority process does not get CPU time bcoz of higher priority? processes keep coming.this can be removed by "AGING"In this A Process waiting for a particular time i...
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Memory Protection
Why do we need memory protection and how the protection is eccomplished by the CPU?
G.Simon
- Jan 4th, 2013
The following Segment Registers are used to protect the Memory of CPU. It is related to Memory layout. such as stack, heap, code and Data of a process. segment registers: CS contains the segment of t...
fordownload85
- Aug 15th, 2009
This is done by using registers we have some thing called fence registers
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Device driver failure
when you are troubleshooting a device driver failure on a windows vista computer and it is preventing the OS to lad properly, the current drivers are stored in a network share. would you use the safe mode with networking?
santoshbhima
- Jan 25th, 2011
When the device is taking input but not respoding means the device driver got corrupted
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What is DHCP Relay Agent?
Suthakar
- Dec 4th, 2012
We use DHCP Relays when DHCP client and server don't reside on the same (V)LAN, as is the case in this scenario. The job of the DHCP relay is to accept the client broadcast and forward it to the server on another subnet.
Sandhya.Kishan
- Mar 14th, 2012
It is a Bootstrap Protocol that relays DHCP(Dynamic Host Configuration Protocol) messages between clients and servers for DHCP on different IP Network.using DHCP in a single segment network is easy. I...
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Advantages of having seperate queues
Describe the advantages of having a separate queue for Print I/O and for Disk I/O
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I do not understand what is the use of hub?
prax82
- Dec 23rd, 2014
Hub is networking device used to connect or prepare small LAN such as home network. this will scale well in case where 5 to 10 systems need to be connected. as it is not intelligent device can not be used in bigger networking
Rahman
- Dec 18th, 2014
Hub is a small device which is used as connectivity device between computer to computer and printer vice verse , if computer is transferring the data to particular another computer it transfer in broadcast
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