A data can be retrieved from the secondary storage for use in main memory, but if we edit the data and not save the data in to the secondary storage, it is termed as a dirty page.
It is a memory managermnet concept where the operating system copies the dats from the disk space to the main memory (RAM) only when is trying to access the page. it is like we have to attempt the page again, when the page fault has occured while trying to get the data.
Some Operating Systems periodically look for pages that have not been recently referenced and add them to the Free page queue, after paging them out if they have been modified.
Each process running on a processor needs its own logical address space. This can only be realized if each process has its own page table. To support this, a processor that supports virtual memory must have a page table base register that is accessible by the operating system. For operating system security, this register is only accessible when the processor is in system mode. The operating system maintains information about each process in a process control block. The page table base address for the process is stored there. The operating system loads this address into the PTBR whenever a process is dispatched.
The Acer Aspire 5735 model has a Windows Vista operating system. The specifications about the Aspire 5735 can be found on the Acer Support page.
Trashing means excessive page input output in swapping. Which reduces the degree of multiprogramming.
dirty penises are awesome.
visit this page that will give you a good idea about operating system
I assume you mean "When was the first operating system introduced?" Seems to be in the 1950s. See the link below for a very detailed page.
It is a memory managermnet concept where the operating system copies the dats from the disk space to the main memory (RAM) only when is trying to access the page. it is like we have to attempt the page again, when the page fault has occured while trying to get the data.
Some Operating Systems periodically look for pages that have not been recently referenced and add them to the Free page queue, after paging them out if they have been modified.
QDOS (Quick and Dirty Operating System)
Each process running on a processor needs its own logical address space. This can only be realized if each process has its own page table. To support this, a processor that supports virtual memory must have a page table base register that is accessible by the operating system. For operating system security, this register is only accessible when the processor is in system mode. The operating system maintains information about each process in a process control block. The page table base address for the process is stored there. The operating system loads this address into the PTBR whenever a process is dispatched.
A browser.
a page fault is a hardware or software interrupt,it occurs when an access to a page that has not been brought into main memory takes place.
An easy way to find out what operating system is installed onto your notebook would be to open your system's control panel. From there you need to go to the "System and Security" section, and from there click on the "System" link. The page will show you your current operating system, as well as all the other details about your notebook.
Far from it. MS-Dos (The MS stands for Microsoft or M$soft) and is covered by probably a million patents. It started as QDOS - (Quick and dirty Operating System) and in most eyes has stayed that way.
The Acer Aspire 5735 model has a Windows Vista operating system. The specifications about the Aspire 5735 can be found on the Acer Support page.