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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
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What type of operating system is usedin railway reservation in India?
Actually there is no OS the all system is as a client system which is used distributuion os app we say that its multiprocessor.
What are the operating systems which can run Open Office?
FreeBSD: v3.3.0
Linux
OpenBSD
NetBSD
Solaris: v3.3.0
Mac OS X v10.2: up to v1.1.2
Mac OS X v10.3: up to v2.1
Mac OS X v10.4-v10.5 (PowerPC): up to v3.4.0
Mac OS X v10.4-v10.7 (Intel): v3.4.0
Windows 95: up to v1.1.5
Windows NT 4.0 Service Pack 6 - up to v2.0.1
Windows 98 - Windows ME: up to v2.4.3
Windows 2000 - Windows 7: v3.3 (Tablet PC input is not supported)
OS/2 and eComStation: up to v3.2.0
IRIX (mips4): up to v1.0.3
How do you restore back your operating system if it written on by another operating system?
Answer: Do you mean you want to restore an OS which was overwritten by another? You can't. Once all of the important files have been overwritten, there's nothing much you can do except reinstall the original operating system from scratch.
Answer: A typical hard disk can only have one partition set to be the active boot partition, even though there may be boot programs on more than one partition.
Sometimes during installation of an OS, the boot location is changed to the new partition/OS bootstrap program. This leaves the previous partition/OS bootstrap program inaccessible. This may be corrected by configuring a Dual-boot option in the new bootstrap program to reach both OS.
You may be able to alter the active boot partition to reach the original bootstrap program, and add a dual-boot option to the original bootstrap program to reach both OS. I can recommend using the free/open software gPartEd to change this boot partition and SuperGrub to modify a GNU/Linux boot program.
What system can the ReactOS platform be run on?
ReactOS platform system can be run mainly on Microsoft but one can also install it on other operating systems like Ubuntu or Mac OS. Installing it on other operating software takes time.
What is the function of Alt plus N?
ALT+N is an accelerator (a keyboard shortcut). It's function is dependent upon the context in which it is used. In Windows, the ALT key brings focus to the active application's command menu while the N will highlight any top-level menu that has been assigned the N accelerator. In Visual Studio, for instance, ALT+N brings focus to the Visual Studio IDE's ANALYZE menu. But if the desktop has focus, ALT+N does nothing because it is not a designated accelerator for the desktop.
The Mac is the same as any other computer except it has a different operating system. It is a normal notebook made of aluminum and plastic, a hard dive a processor and graphics chip. Everything is essentially the same except the Operating System.
Window's based computers use the Windows Operating System, it is based on MS-DOS which is based on DOS. Apple computers use the Mac OS which is based on both OpenStep and FreeBSD.
Each Operating System supports different programs and works differently as in communication with the core CPU and use of RAM in organization of tasks.
So now taking into account that the actual pysical structure of a Macbook Pro (for example) is the same as that of an Asus K53SC (same RAM but Asus graphics chip and battery are better); and taking into account that the Mac OS is based on FreeBSD (which is free, as hinted by the name); the real price of a Macbook Pro should be 600-700€. It is overpriced and can withstand less programs than a Windows PC...
In conclusion, buy a PC and install Linux, this makes a cheap and better Mac.
Why do menu-driven interfaces continue to be popular in the modern computing age?
Menu-driven interfaces continue to be popular because they are easier to figure out and work with than command-line interfaces, with frequently cryptic and hard to recall commands and option selections.
DOS is an abbreviation for Disk Operating System. Historically, not all operating systems ran off of floppy disks or hard drives, so ones that included this functionality often had "DOS" in their name. Examples include Apple DOS, Atari DOS, ProDOS, Commodore DOS, and TRS-DOS. Nowadays, most operating systems are run off of a disk, so the term DOS is no longer widespread.
DOS is also usually used to refer to MS-DOS and related systems. While by no means the first operating system to run off of a disk, it was the most popular one. Thus, the term "DOS" was hijacked to refer mostly to MS-DOS and compatible systems.
What is the difference between Kernel and User level thread?
A kernel thread, sometimes called a LWP (Lightweight Process) is created and scheduled by the kernel. Kernel threads are often more expensive to create than user threads and the system calls to directly create kernel threads are very platform specific.
A user thread is normally created by a threading library and scheduling is managed by the threading library itself (Which runs in user mode). All user threads belong to process that created them. The advantage of user threads is that they are portable.
The major difference can be seen when using multiprocessor systems, user threads completely managed by the threading library can't be ran in parallel on the different CPUs, although this means they will run fine on uniprocessor systems. Since kernel threads use the kernel scheduler, different kernel threads can run on different CPUs.
Many systems implement threading differently,
A many-to-one threading model maps many user processes directly to one kernel thread, the kernel thread can be thought of as the main process.
A one-to-one threading model maps each user thread directly to one kernel thread, this model allows parallel processing on the multiprocessor systems. Each kernel thread can be thought of as a VP (Virtual Process) which is managed by the scheduler.
What is the difference between the kernel and the user?
Kernel mode is considered a 'privileged' mode, meaning that code executing in that mode can have access to any part of the system, memory, devices, etc. There are no limitations on what it can do.
User mode only allows certain operations. Anything requiring any amount of privileged must request the kernel to do things on their behalf. User mode is not a privileged mode and is therefore restrictive in terms of accessing memory, devices, etc.
to put pages together, or if you warap a sprained ankle or something that is also binding.
just to double check you can go to www.dictionary.com
Operating systems are systems that make computers work. E.g: windows, IOS, Zio,apple and safarei.
How is it possible to tell if a file was copied?
Check source file Attributes: ACL's (access control block), access date, last accessed by, file sizes that appear to be exactly the same, creation date of target file vs access date of source... etc.
Advantage and disadvantage of priority scheduling?
Advantages of Priority Scheduling-
1.Simplicity.
2.Reasonable support for priority.
3.Suitable for applications with varying time and resource requirements.
Disadvantages of Priority Scheduling-
1.Indefinite blocking or starvation.
2.A priority scheduling can leave some low priority waiting processes indefinitely for CPU.
3.If the system eventually crashes then all unfinished low priority processes gets lost.
What is the difference between cooperative multitasking and preemptive multitasking?
Cooperative multitasking is multitasking tohelp someone else, while peemative multitasking is multiaatsking for yourself.
A page fault is an alert, such as an interrupt or exception, which indicates that a page of memory was accessed without being loaded.
