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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
What type of software include the operating system and system utlities?
Windows xp, vista and 7 all offer the system OS and system utilities as well.
What operating systems are commonly used on the internet?
All WebPages use HTML or Hypertext Markup Language which is the universal format that every web page is written.
Web browsers read this code and convert it to a more user friendly format.
The main web browsers are:
Internet explorer with a market share of approximately 71%
Firefox with a market share of approximately 21%
Safari with a market share of approximately 3%
Google chrome with a market share of 1%
There are other web browsers such as Opera.
The main search engine used is Google with allot of other search engines basing their own results off goggles own however I find Bing allot better.
As for personal computer operating systems, windows has a market share of approximately 88%, Mac approximately 9% and Linux approximately 4%
Windows has 7 released operating systems however the majority of the world uses the latest three:
XP with a market share of approximately 25%
Vista with a market share of approximately 8%
7 with a market share of approximately 39%
Windows 7 is the latest release of the windows OS however windows 8 and Metro are expected to be released this year October 26 2012
Explain with an example first come first serve scheduling algorithm?
By far the simplest CPU-scheduling algorithm is the first-come, first-served (FCFS) scheduling algorithm. With this scheme, the process that requests the CPU first is allocated the CPU first. The implementation of the FCFS policy is easily managed with a FIFO queue. When a process enters the ready queue, its PCB is linked onto the tail of the queue. When the CPU is free, it is allocated to the process at the head of the queue. The running process is then removed from the queue. The code for FCFS scheduling is simple to write and understand. The average waiting time under the FCFS policy, however, is often quite long. Consider the following set of processes that arrive at time 0, with the length of the CPU-burst time given in milliseconds:
Would you set up a GUI server system why or why not?
hi
no it isn't important as a server has guibetter performing
Where are none essential parts of operating systems stored?
You mean "Where are the essential parts of operating systems stored?"
Depends which operating system. Linux stores stuff in a few different places, as does Unix. Windows stores itself inwhich is by default C:\WINDOWS where C is the drive letter of the primary drive.
Maybe they meant, "non-essential?" The answer is still C:\WINDOWS as far as I know for Microsoft OS's.
How long has LVNV Funding been operating for?
What is known as LVNV Funding has not been operating for a very long amount of time. What is called LVNV Funding has been operating since the year 2007.
What is the language of the command prompt called?
"powershell" on windows and "bash" on linux. I'm pretty sure mac uses bash too
ROM
ROM is an acronym for Read Only Memory. The advantage of ROM is that its contents do not evaporate when the power is switched off. Therefore the program which needs to execute when the computer is first switched on is stored in a ROM chip on the computer's motherboard.
Once the program stored in the ROM chip has finished initialising the hardware, it moves the head of the hard disk to track 0, reads the first sector of track 0 into memory, and then passes control to the short program stored in the first sector of the hard disk. To simplify a bit, it is the responsibility of that program to locate the operating system files on disk, and then begin the process of loading them.
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Is operating system software a commonly used application software?
No. The operating system is actually never 'used' (that is, by the person using the computer). Essentially, the operating system provides a set of tools that applications use to run. The operating system is also responsible for ensuring that the tools are used properly, to prevent one application from causing problems for a different application, or for other areas of the computer.
The operating system aspect of "Windows" is actually a very small part of the package you have running on your computer, and is usually referred to by computer folks as the kernel. Windows is a collection of applications that are interacted with both by the operating system, by each other, and by applications installed after Windows, to provide you with the various functions you're familiar with on your computer.
What is a command-driven operating system?
Essentially, all computer operating systems (OS) are command driven. A command is digital "to do" list issued to the OS brain (kernel) that commands it to utilize the computer hardware and/or software to accomplish something.
In today's operating systems, like Windows 7 or Snow Leopard, you can use your mouse or keyboard to kick off a command in the background. For instance, clicking on "New Folder" in Windows Explorer is a command to create a new folder.
Most often though, when people refer to a "Command-Driven" OS, they mean something like DOS or Unix, where you must type in an actual keyword command into the interface. Each OS has a set of commands that it recognizes, like the command "del" is a command to "delete" in DOS.
With the invention of visual user interfaces (sometimes referred to as GUIs) the need for entering OS specific text commands has become obsolete, now we mostly use application menus and mouse clicks.
When is a system in safe state?
The set of dispatchable processes is in a safe state if there exists at least one temporal order in which all processes can be run to completion without resulting in a deadlock.
Windows NT
What is the use of .stack .data in starting lines of 8086 programming?
.STACK
reserves
.DATA
Below the ".DATA" line you should declare (and optionally define) your variables, so the compiler reserves the corresponding RAM for each of them.
Data works differently from stack, as the data segment will keep named values (the variables values) while the stack will not. The stack will grow as needed upto the maximum value defined in the .STACK
What are the advantages and disadvantages of a network operating system?
Loosely-coupled operating system for heterogeneous multicomputers (LAN and WAN)
Offer local services to remote clients
too primitive (lowest common demoninator - too much diversity)
What is the file system on the operating system?
This is dependent on which operating system you have.
For example, Win95 uses FAT or FAT16, Win 98 uses FAT or FAT32, NTFS is on Win200, XP, Vista, 7
Mac OS X uses HFS+
And Linux-based OS's usually use ext4, ext3 or newer Btrfs, though can be installed on almost any filesystem in existence.
What operating system does a Intel 915G motherboard use?
It doesn't "use" any operating system. There are drivers available for Windows 2000, XP, 2003, and Vista. Intel-brand motherboards also have full Linux support.
What happens what you delete a file from a FAT partition?
When a deletion is made from a FAT (File Allocation Table), it is not actually deleted from the computer. It remains in the computer, but not accessible until other data takes its place.
What is the beginning of the operating system?
I cannot tell what your asking by the question. The first commercial sold Operating System was the EXEC series by UNIVAC
The blue screen that appears when you press F(something) during the start up of your computer is called the System BIOS.
Why do you say the requirements model represents a snapshot of a system in time?
The intent of the requirements model is to provide a description of the required information, functional, and behavioral domains for a computer‐based system. The model changes dynamically as software engineers learn more about the system to be built, and stakeholders understand more about what they really require. For that reason, the analysis model is a snapshot of requirements at any given time.
