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What is a Real-Time System?
A real time process is a process that must respond to the events within a certain time period. A real time operating system is an operating system that can run real time processes successfully
adeshgupta123
- Jul 24th, 2009
RTS like embedded system work in real time, like robort work on RTS. Windows CE is RTOS.
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Interrupt "trap" what is this trap?
thukral.rahul
- Jan 12th, 2010
A Trap is a Software generated interrupt. A Trap is set to have occured when some exceptions occurs like - a process accessing a memory address outside it's address space would result in a trap which ...
maaz_qureshi
- Oct 24th, 2008
A trap is a software-generated interrupt, An interrupt is a hardware-generated change-of-flow within the system. An interrupt handler is summoned to deal with the cause of the interrupt; control i...
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What are the difference between FAT32 and NTFS?.
thukral.rahul
- Jan 12th, 2010
NTFS stands for new technology file system. It is an advancement over the FAT12, FAT16 and FAT32 versions of the file system used in windows earlier.In NTFS, theoritical it can store a file as large a...
viren_VRS73
- Aug 5th, 2008
NTFSOperting System - Windows 2000, Windows XP, Windows 2003 Server and Windows VistaMax Volume Size - 2TBMax Files on Volume - Nearly UnlimitedMax File Size - Limit Only by Volume SizeMax Clusters Nu...
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What is cache memory?
Cache memory is random access memory (RAM) that a computer microprocessor can access more quickly than it can access regular RAM. As the microprocessor processes data, it looks first in the cache memory and if it finds the data there (from a previous reading of data), it does not have to do the more time-consuming reading of data from larger memory.
thukral.rahul
- Jan 12th, 2010
A Cache is a fast memory (generally SRAMS) that is genearally installed between the main memory and disk to reduce the transfer rate and access time disparities.
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When a user clicks a particular file or an .exe file on a computer, what process does the system go through before the actual file is loaded onto the desktop?
thukral.rahul
- Jan 12th, 2010
When a user executes a file , the process is directly loaded into the memory . Genearly some OS has a Long term scheduler which moves the processes from the waiting queue to the ready queue(in memory)...
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What is the relation between process system time, process waiting time , and process CPU time?
thukral.rahul
- Jan 12th, 2010
Turn around time - It is the total time required by the process for execution.It includes the waiting time + execution time + othersWaiting time - Is the time a process spends in the ready queueCPU Time (or burst time) - It is the time a process requires the CPU to complete it's task or computation
karishma
- Feb 27th, 2006
Process system time (turn around time) = process cpu time + process waiting time
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Q which of the following scheduling policy is well suited for a time-shared operating system ? 1 shortest job first 2 round robin 3 first come=first served 4 elevator
thukral.rahul
- Jan 12th, 2010
In a time sharing system, the main concern is to reduce the response time so that the user is given an abstraction that whole of the processor is dedicated to the user process even though multiple pro...
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Physical Port and Logical Port
What is Physical Port and Logical Port in Windows XP terminology?
Bindu Sundharan
- Jan 21st, 2010
Through logical address the system identify a network (source to destination). after identifying the network physical address is used to identify the host on that network. The port address is used to identify the particular application running on the destination machine.
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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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What is page fault?
manishtripathi
- Mar 11th, 2010
The number of times that data had to be retrieved from the page fileon the hard disk because it had been paged out ofphysical memory. Windows uses a page file storedon the hard disk to aug...
younus_syed
- Jun 26th, 2008
If an application requires more physical memory it uses swap memory. Page out means moving some data and address space of physical memory to hard disk.A page fault happens when a system tries to access data in memory that has been paged out to disk.
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What is virtual memory?
A virtual memory is hardware technique where the system appears to have more memory that it actually does. This is done by time-sharing, the physical memory and storage parts of the memory one disk when they are not actively being used.
mohd_ismail21
- Mar 16th, 2010
Virtual memory is a non physical (intangible) memory created by the CPU to temporarily store the data for displaying purpose. Example: the website page you are seeing is not stored in physical memory it is stored in virtual memory and when you close the website page the memory is lost. RegardsIsmail
goksn
- Sep 6th, 2009
Virtual memory is a memory management technique used for handling programs/data files larger than the physical memory of the system.Op.system loads as much data as possible into its main memory (RAM)....
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File Size Limit in Windows
What is the file size limit (for a single file) in FAT, FAT32 & NTFS?
dsbundel
- Mar 24th, 2010
FAT16: Maximum file size 2 GB FAT32: Maximum file size 4 GB NTFS: File size limited by size of volume
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In windows 2003 built in fire wall is there or not?
Sairam Maddipati
- Jun 6th, 2010
Yes it is there. Path is Run - NCPA.CPL - Select Network Adapter - Right click Properties - Last tab Advanced - just below you will firewall.
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What is the main component of operating system?
gokulnithish
- Jun 8th, 2010
There are three main components:1. Control Programs 2. Sytem Service Programs 3. Utility Programs 1. Control Programs Control & maintain the operation of computer Initial program loader (IPL)...
rakesh trichy
- Oct 11th, 2008
There are three main components:1. Control programs2. Sytem Service Programs3. Utility programs
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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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FSMO roles
What are FSMO roles ? explain them ? which are domain and forest wide FSMO roles?
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What is the meaning of System call and Interrupts?
Give the difference of them.
sukhmeet2390
- Jul 25th, 2011
System Call: It is can by a user to run a program via OS kernel through instructions for which he/she is not granted permission. System calls are synchronous and provide an interface between system an...
Aubra Pian
- Jun 11th, 2011
System calls are synchronous, they occur in a fixed order determined by the program. System interrupts are asynchronous and can occur at any time. They are invoked by the user.
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