Operating Systems

THE OPERATIONAL CLASSIFICATION OF SERVICES IS BASED ON THE TYPE OF SERVICES PROVIDED AND THE TARGET CUSTOMERS, EX HOSPITALITY SERVICES RECREATIONAL SERVICES CONSULTANCY SERVICES HOTEL SERVICES ... and so on

System software is any computer software which manages and controls computer hardware so that application software can perform a task. Operating systems, such as Microsoft Windows, Mac OS X or Linux, are prominent examples of system software. System software contrasts with application software, which are programs that enable the end-user to perform specific, productive tasks, such as word processing or image manipulation.

System software performs tasks like transferring data from memory to disk, or rendering text onto a display device. Specific kinds of system software include loading programs, Operating systems, device drivers, programming tools, compilers, assemblers, linkers, and utility software.

Software libraries that perform generic functions also tend to be regarded as system software, although the dividing line is fuzzy; while a C runtime library is generally agreed to be part of the system, an OpenGL or database library is less obviously so.

Preemptive scheduler reruns scheduling decision when process becomes ready. If the new process has priority over running process, the CPU preempts the running process and executes the new process. Non-preemptive scheduler only does scheduling decision when running process voluntarily gives up CPU. In effect, it allows every running process to finish its CPU burst.

A digital forensic lab should make use of multiple operating systems and hardware configurations because of the possibility of not only examining newer digital devices, but legacy equipment as well (yes, there are C64s still in use). Not all forensic tools are capable of capturing images, or performing analysis, from older operating systems and hardware - a well equipped digital forensic lab should keep working images of older operating systems to mitigate the possibility of being unable to acquire data.

Apple's OS is a great foundation because of the Unix underpinnings, and the availability of many vetted open source tools, but DOS and Windows have powerful commercial tools as well. No one platform or tool is better than the other - the best tool is simply the one that works for the job at hand.

Better include a browser,or how can you download a new browser to setup?

A whole lot of things - as a desktop/laptop operating system, used in embedded system scenarios (smartphones, routers, Raspberry Pi, some media players like older iPods), and as servers.

The user is responsible for interacting the operating ststem with the hardware.

It's a program which is used to manage the disk volume of your hard drive. In basic terms, your computer has a thing known as a Hard Disk Drive (HDD) which can be used to store files, music, videos etc on your computer.

On your HDD you'll have an Operating System, which is an important program that allows you to use your computer e.g Windows 7, Windows 8, Apple Mac OS, Windows XP etc.

Now In Disk Management, you are able to allocate how much space goes where and if you want any more virtual hard disk drives. You may want a (C:/) for all your important OS files, and then a (D:\) for all your personal files such as music and videos.

It's basically just a place where you can sort out your storage.

You can learn about the Linux operating system from a number of sources. You can get books on Linux, you can read blogs, or you can ask away in forums.

There are a number of free operating systems for personal computers. They include Linux, NetBSD, GNU, Open Solaris, Darwin, Free DOS, AROS, eCOS and Haiku.

a set of programs

Operating systems are developed by 3 major companies.

Microsoft makes Windows, Macintosh makes macs, and Linux makes Linux operatin systems.

There are a variety of versions of each OS.

We encounter cycle stealing in the context of Direct Memory Access (DMA). Either the DMA controller can use the data bus when the CPU does not need it, or it may force the CPU to temporarily suspend operation. The latter technique is called cycle stealing. Note that cycle stealing can be done only at specific break points in an instruction cycle.

it adds power ( ability to process faster) which in turn adds over all speed

MacBook Pro comes with macOS, the most advanced desktop operating system in the world. macOS is designed to take full advantage of the powerful hardware in every Mac, and to deliver the most intuitive and seamless experience possible.

You can buy MacBook Pro from: Microprokey

It all depends on the user has put on the desktop. Usually, you will see My Computer, Recycle Bin and many My Documents.

One benefit is that a virtual desktop is eco friendly and will save your company money on its power bill. You can find six more benefits of virtual desktops here: http://www.zdnetasia.com/seven-benefits-of-virtual-desktop-infrastructure-62051917.htm

• Recovery Software: recovers deleted, lostor corrupted data
• Deletion Software: removes data from a drive
• Utility Software: monitors a drive to ensure is working properly
• SecuritySoftware: encrypts data on a drive

if it is an external SATA drive then yes, otherwise it is not suggested and rarely works.

There is no difference in speed. If you are dual-booting, the only consumed resource is hard drive space, which has no impact on performance.

Very easy. Desktop operating system is the base from all you use for write in word processors, internet browsing, gaming, etc, requiring time for processing instructions. Microsoft Windows or Debian GNU/Linux is an example.

The function of real time operating system is the fastest response time at the queries. His function would be, for example, push one key and instantly responds, without process necessarily instructions, or execute one command or utility without wait any time: practically instantaneous. His structure is simple for memory/disk/network access. The high performance cluster servers and supercomputers can use real time, but not necessarily. The OS most nearest for this instruction method is RTOS/360.

As OS has evolved as dinosaurs, the author has included the pictures..

I got this from kinindia.com

Mainframe operating systems are used to process large amounts of information for businesses and organizations. Examples include IBM OS/360, ICL 1900 Series, and HP-UX.

black berry,windows,simbian,android

MULTIPROGRAMING .................. The term multiprograming denotes an operating system that,in addtion to supporting multitasking. In multiprograming more than one jobs are active in memory.Within a very small period more than one jobs are executed simultaneously. MULTITASKING ............... In general multiprogramming implies multitasking,but multitasking does not imply multiprogramming. A multitasking operating system is distinguished by its ability to support concurrent execution of two or more active processes. as discussed actually both multitasking and multiprogramming are same no other answer mentioned are justifiable.....