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When you use Sun VirtualBox does the operating system use your real RAM or something else?
Wiki User
∙ 14y ago
VirtualBox runs the operating system just like an application on your host operating system. When you give your guest operating system 512 MB of RAM, it appears as though a program is using 512 MB of RAM on your host. For this reason, you can never specify more RAM than you actually have installed, and for stability reasons, you should never specify more than half of your RAM for the guest.
Wiki User
∙ 14y ago
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What is the correct value to return to the operating system upon the successful completion of a program?
0=okay, anything else=error code
What takes care of the interaction between a program and a computer's hardware freeing application programmers from the task of including such functions in their programs?
OS or Operating System. I feel that this question is too specific to be of help to people. 1. What function does an Operation System have besides hardware abstraction? 2. Is the Graphical User Interface part of the OS or not? 3. Anyone else have more questions or ways to elaberate?
What are sequential if then else patterns?
A sequential if-then-else pattern is a pattern where the program checks on thing at a time using if statements. For example, in C: if (condition 1) { do something 1; } else if (condition 2) { do something 2; } else if (condition 3) { do something 3; } else { do something else; } The first condition that is true will be executed.
How many bytes are in a txt file comoposed of 3 blank lines?
This depends on operating system. Windows uses two bytes per line, and most other operating systems use one. This means there will be 6 bytes for Windows, or 3 bytes for everything else This is because Windows uses a line ending of <CR><LF>, while other operating systems use just <LF>.
Windows could not start because the following file is missing or corrupt?
reinstall windows, it depends on which operating system you have or computer manufacturer you have. on hp , tap the f11 key until it says " loading files" then go to system restore and restore your computer to the original factory condition. that's all. or if you bought this operating system, return if get another one. or else, its illegal and cracked. another thing if you have a warranty get it in for check up its going to be free, possibly ;] hope this helps;]
Which RAM does any OS in VirtualBox use Does VirtualBox create a virtual memory or use the same RAM of the host computerfor e.g if I have 8 gb RAM in my system, and I have assigned 4 gb RAM in virtualBox to other OS, then will it use systems RAM?
VirtualBox doesn’t have a virtual memory. Instead, it creates a virtual hard drive as a file in your file system, and when it boots up the virtual machine, it loads the entire virtual machine into RAM. This is the same way VirtualPC used to operate. The difference is that VirtualPC did things a bit differently. When you installed Windows on a VirtualPC machine, you were actually installing the entire operating system into a virtual hard drive file. It then used the same RAM you gave it to actually load the operating system into RAM. The virtual hard drive file was quite large, and when your computer rebooted, it had to reload the entire operating system again. VirtualBox is different in that it only loads the operating system into RAM when you actually boot up the virtual machine. This means that you don’t need to leave 4 gb of RAM free when you boot up Windows XP, or whatever else you’re running in VirtualBox. It also means that if you reboot your computer, you don’t have to wait for VirtualBox to load your operating system again. It eliminates the lag time that VirtualPC was notorious for.
Is wireless a type of operating system?
No, it's just something capable of communicating with something else w/o being physically linked by a wire.
Is unix a part of operating system?
No: Linux is a general purpose operating system, and it has a windows system as well. Yes: Linux looks like a window operating system to the uninitiated.
Where is the operating system stored?
In a Windows environment, the operating system is located on the C drive in the system folders. It can be manually installed somewhere else if desired.
Is Unix efficient?
Efficient only has meaning if you compare it to something else. Like any other operating system it has efficiencies and inefficiencies. It depends on your environment.
What's the use of OS in PC?
The operating system tells your personal computer how to function. The operating system tells the computer how to interact with the keyboard, the monitor, the modem, and just about everything else the computer does. Your central processing unit does whatever the program tells it to do. Then it comes to a point where the program tells it to send something to the printer. It says to the operating system, "Take this to the printer." Then the operating system takes it to the printer.
Why operating system very important?
Because everything else is based on that.
What are signals that inform the Operating System that something has happened?
Messages or values in registers. Messages are passed between programs and the operating system to tell something else what to do. For example, when you click on a program, the computer does not directly run the program's code. The operating system receives a message telling it to run the specified program and does so. It makes note of this in internal registers, which keep track of what program is executing and what line of code is being executed.
In what operating system can you print something while doing something else?
Basically all modern OSes. Windows 2000/ME/XP/Vista, Mac OS 9/X, most flavors of linux...
What is the kernel in operating system?
the central part of the OS that everything else is built around.
Why operating system difficult to create used maintain?
dont know ask someone else
What are the 2 subgroups of the nervous system?
vines and something else
