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Operating Systems
Operating systems, both proprietary and open-source, include those produced by Microsoft, Linux, and Apple Mac
4,423 Questions
if your operating system is not functioning
your computer will not process data
What is the difference between Hard and Soft real-time systems?
A hard real-time system guarantees that critical tasks complete on time. This goal requires that all delays in the system be bounded from the retrieval of the stored data to the time that it takes the operating system to finish any request made of it. A soft real time system where a critical real-time task gets priority over other tasks and retains that priority until it completes. As in hard real time systems kernel delays need to be bounded
In HTML:
<font size=1>Smallest</font>
<font size=3>Normal</font>
<font size=7>Largest</font>
The font tag can also have the color and face defined.
<font size=3 color=red face=arial>Normal</font>
However, the FONT tag is deprecated and has been removed from current versions of [X]HTML.
Instead, use CSS to specify font size. For example:
h1 {font-size: 2em; }
div.fineprint { font-size: .85em; }
What is the resident set and working set of a process?
Resident set is that portion of the process image that is actually in real-memory at a particular instant. Working set is that subset of resident set that is actually needed for execution. (Relate this to the variable-window size method for swapping techniques.)
Which would contribute to the hardening of your operating system?
Install Operating Patches and Install Hotfixes.
Why can't Rom chips be changed?
ROM chips are designed to hold instructions for the computer to perform when it's first switched on. This includes important operations such as...
Check the computer's components are working
Start the hard drive spinning
Read the operating system into RAM
That's just a few of the most important tasks. RAM chips lose their information when the computer is switched off. ROM chips are semi-permanent - meaning the data they hold cannot be erased or over-written easily.
What was the operating system of the Xerox Alto?
Developer Xerox PARC
Media 2.5 MB one-platter cartridge
Operating system Alto Executive (Exec)
CPU TTL-based, with the ALU, built around four 74181 MSI chips. It has user-programmable microcode, uses the big-endian format, and a CPU clock of 5.88 MHz
A virtual application is an application that has been optimized to run on virtual infrastructure. The application software along with just enough operating system (JeOS or "juice") is combined inside a virtual machine container in a manner that maximizes the performance of the application.
The signal() operations associated with monitors is not persistent in the following sense: if a signal is performed and if there are no waiting threads, then the signal is simply ignored and the system does not remember the fact that the signal took place. If a subsequent wait operation is performed, then the corresponding thread simply blocks. In semaphores, on the other hand, every signal results in a corresponding increment of the semaphore value even if there are no waiting threads. A future wait operation would immediately succeed because of the earlier increment.
How can you show protected operating system files?
Windows XP can be configured to either hide or show protected operating system files and/or hidden files and folders.
* Why hide them? If you are setting up a computer for someone else, you may wish to hide certain files to help prevent the user from accidentally deleting or moving critical Windows files. Or, even if you are an expert user, you may wish to hide files to prevent 'accidents'.
* Why show them? If you are trying to diagnose a problem (virus, spyware, etc.) and are an expert user, you may need to see all of the files on your system to determine if they have been changed.
1. Double-click "My Computer" on the desktop.
2. Select "Tools" - "Folder Options".
3. When the "Folder Options" multi-tabbed dialog box appears, select the "View" tab.
4. Scroll down to "Hide protected operating system files (Recommended)" and check or uncheck the box as desired.
5. Underneath "Hidden files and folders", check the desired radio button to show or not show these items.
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What is the significance of the asterisk in the file system?
In many operating systems, an asterisk (*) in a file name is a wild card, matching any character or characters. For example, abc*.jpg will match abc.jpg, abc123.jpg, abcxyz.jpg, and abcr8ier93.jpg.
What is the Functions of operation manager or production?
Describe the four http://wiki.answers.com/Q/What_is_the_Functions_of_operation_manager_or_production"
change the CMOS battery
one day i bent over to fart and the my kid lite my fart then my house blew up then i bitched slapped my kid
