Operating Systems

The question is vague, but a process in reference to a database usually involves 1-x transactions and completes some predefined amount of work. A transaction is the smallest unit of work that is complete in the database scheme of things. The system is even larger than the process and usually covers a complete area of business and contains many processes.

GNU is a Free Software project which is essential to the Linux operating system. It is a project that provides and distributes a lot of the software which is essential to making a fully-functional operating system distribution based upon the Linux kernel. For example, the Linux tools/commands that allow you to enter and run commands, copy files from one directory to another, compress and uncompress files, search for strings within text files, and mount and unmount filesystems are all GNU-provided tools. In short, GNU is a project which provides a major portion of the base Linux operating system - besides Linux itself which is the kernel and is provided by a separate project. It does not however provide the entire rest of the operating system; primarily just the type of basic tools mentioned above (although a very lot of them). Some GNU software has also been ported to run on other operating systems also. Some people refer to the Linux operating system as GNU/Linux to reflect the major contribution which GNU provides to that operating system.

You have to have some kind of software to operate a computer. For a computer to even know what to do when you power it on, there is software stored on a chip on the motherboard, called the bios. This tells the computer what disk drives and other components are connected so that it can do something. From the bios, the computer looks for software on a floppy, hard disk, or CD drive to run an operating system of some kind.

It is possible to run a computer without software by typing commands in machine language. Even then, you need the software on the computer chip to operate the keyboard. The old VIC 20 and C64's operated in somewhat that way. To do anything you had to type in commands.

Unless you are doing something very basic or sophisticated it is impractical to operate a computer without software

# Is there a 'Start' button in the bottom left-hand corner of the screen? # Yes - go to 2. * No - go to 6. # Click 'Start'. Is there text down the side of the Start Menu? # If 'Windows server 2003' is written down the side of your Start Menu, your operating system is Windows server 2003. * If 'Windows XP Professional' is written down the side of your Start Menu, your operating system is Windows XP Professional. * If 'Windows XP Home' is written down the side of your Start Menu, your operating system is Windows XP Home. * If 'Windows 2000 Professional' is written down the side of your Start Menu, your operating system is Windows 2000 Professional. * If 'Windows NT Workstation' is written down the side of your Start Menu, your operating system is Windows NT Workstation. * If 'Windows Me' is written down the side of your Start Menu, your operating system is Windows Me. * If 'Windows 98' is written down the side of your Start Menu, your operating system is Windows 98. * If 'Windows 95' is written down the side of your Start Menu, your operating system is Windows 95. * If anything else is listed, that is probably your operating system. * If no operating system information is listed, go to 3. # Is 'Help' or 'Help and Support' listed? # If 'Help and Support' is listed, go to 4. * If 'Help' is listed, or neither is listed, go to 5. # Look at the top right hand corner of the 'Help and Support Center' dialog. Is Windows XP Professional or Home mentioned? # If Windows XP Professional is mentioned, your operating system is Windows XP Professional. * If Windows XP Home is mentioned, your operating system is Windows XP Home. # Close the Start menu. On the Windows desktop, right-click 'My Computer'. Select 'Properties'. #* At the top, under 'System', is a version of Windows mentioned? If so, that is your version of Windows. # Is there an apple logo in the top left-hand corner of the screen? # Yes - go to 7. * No - go to 8. # Is there a tool bar in the middle of the bottom of the screen whose icons expand when you move the cursor over them? # Yes - your operating system is Mac OS X. * No - your operating system is an earlier version of the Macintosh, e.g. OS 8 or OS 9. # Your computer is running some other operating system, or is using a non-default configuration. Check your computer manual, or ask a computer engineer.

show diagram of batch operating sstem

Turn the computer off then turn the computer back on

Operating system

windows of course

A time shared operating system allows many users to share the computer simultaneously.since each action or command in a time shared system trends to be short,only a little cpu time is needed for each user. As system switches rapidly from one system to next, each user is given the impression that the entire computer system is being used by him,even though it is being shared among many users.

Go to account settings and you should be able to change it there. It is the button next to Sign Out that says My Account.

It is useful because in the case where you need to restore data from any storage device no matter what file system they're formatted in, you will be able to retrieve data.

The best OS for playing games is Windows, because most successful commercial games are available for Windows only.

In the Microsoft Windows product family, Windows XP is the best from the point of view of performance, as it consumes less of a computer's resources for itself and leaves more for the game to use and run better/faster.

Windows Vista is more recent, consumes more resources for itself and leaves less for the game, but there are some games that will only run on DirectX 10, which is available for Vista only.

The matter is further complicated however by the fact that some gaming hardware (such as graphics cards, sound cards etc.) have drivers that are not yet fully compatible or bug-free for Vista.

Therefore, for gamers with recently-bought computers (everything inside is new), Vista may be the best. For all other PC owners, Windows Xp is the best.

If you find this confusing, you should probably look into consoles. They are guaranteed to run all games designed for them and do not require such carefully calculated decisions regarding hardware.

A: Shell

B: Kernel

Symbian OS is an operating system designed for mobile devices, with associated libraries, user interface, frameworks and reference implementations of common tools, developed by Symbian Ltd. It is a descendant of Psion's EPOC and runs exclusively on ARM processors.

According to Andrew Tannenbaum, the creator of Minix and the author of Operating Systems: Design and Implementation, the two chief tasks of an operating system. The first function is to provide an abstraction layer above the hardware that is easier to program than the bare hardware. By providing this function, the user is freed from the need to worry about interrupts, timers, memory management and other low-level functions. The second function of an operating system is to manager all the various resources of the computer (CPU time slices, RAM, printing etc.) and dole them out wisely among all the various programs competing for them. As an example, let's look at the printer. Imagine if three programs were trying to send output to a printer at the same time. Without an operating system managing the resources, the result would be chaos: a few lines from program 1, a few lines of program 2, a few line from program 3, etc.

1. Microsoft Windows

2. Apple Macintosh

3. Linux (not really a brand since it's free)

If someone programmed a computer to write everything to the hard drive, then yes it might work but it would be...really...slow and the life span of the hard drive would be significantly decreased. However, if you just took the RAM out of your computer right now, your computer would refuse to work and wouldn't even start up. Compare it to like a person trying to function without short-term memory. We'd have to memorise it, process it, then try and erase it from memory or have it buzzing around in our head for the rest of our life. With RAM/short-term memory, it could just go in one ear, get processed, then go straight out the other ear.

some examples are messaging and email

A mobile operating system is an operating system (the most basic instructions to allow a device to load software and control hardware) specifically for mobile devices.

Which feature is characteristic of the ntbackup command

Multi users OS support many users. So many people can utilize the resources of the computer. They generally are multi tasking computers which are faster.

There are several different PDA operating systems. The most common are PalmOS, Windows CE, and Linux.

AFAIK there are only 2.

Hardware abstraction and resource sharing.