Operating Systems

The stack is a local memory reserve where the program stores variable and function data. The heap is a special memory reserve where the programmer can dynamically allocate memory from. The heap is useful when the programmer doesn't know how large to make certain variables, he just constructs one of the right size during run-time.

When logging into any system on a computer, you should be very careful not to leave your log in information where it can be accessed. Always make sure you close out any page with your personal information before leaving the computer.

A binary semaphore is a semaphore with an integer

value that can range only between 0 and 1. A binary semaphore can be simpler

to implement than a counting semaphore, depending on the underlying

hardware architecture.To implement it in terms of binary

semaphores we need the following data structures:

binary-semaphore S1, S2;

i n t C;

Initially S1 = 1, S2 = 0, and the value of integer C is set to the initial value

of the counting semaphore S.The wait operation on the counting semaphore S can be implemented as

follows:

wait (S1) ;

c--;

i f (C < 0) {

signal(S1) ;

wait (S2) ;

}

signal(S1)

The signal operation on the counting semaphore S can be implemented

as follows:

w a i t (S1) ;

C++ ;

i f (C <= 0)

signal (S2) ;

e l s e

signal (S1) ;

An operating system

Yes, it is true.

It allows you to connect to a computer using its NetBIOS name rather than an IP address. It is similar in function to the IP Hosts file.

This technology is effectively deprecated (NetBIOS is an old technology) but allows the LMHost file to resolve NETBIOS names to IP address for environments with older applications. It is the last 'name resolution' mechanism to be used before name resolution fails.

Physically, it is a text file that is stored in Windows\System32\drivers\etc. A sample LM Host file with explanation can be found there (LMHost.sam).

It cannot be used with IPv6 and Windows uses DNS in preference to NetBIOS names since at least Windows 2000.

What makes you think Windows 3.i is not an operating system? Actually Windows 3.1 came as two parts, Windows 3.1 and MS DOS. Windows still comes that way! MS DOS is the operating system that runs the computer. Windows 3.1 contains the programs that you used. The operating system and the programs in Windows 7 are made separately, you simply do not realize that when you use the program.

Purely as Windows has 95% of the market share thus it is what most people are used to. When it is said to be "user friendly" what is meant is "the same as always".

However, try writing a 100 page document in Word or after your computer has opened a .exe file without asking your permission so that a virus may devastate your computer: not so "user friendly" then! The term used in this sense is a decoy, as if you try any of a large number of OSs and applications offer the very same services, these days with a very small lag time as many look (on the surface) more or less the same as the Windows version - yet may run faster/more efficiently.

A more up-to-date usage of the word "user friendly" is used when discussing application use. User friendly here means making the user's experience as efficient as possible - of course different users have different needs, so some things will make one user's experience more efficient and another less so! For example, if you were writing a 100 page document in Word it would crash/run insanely slow, in OpenOffice Writer or a LaTeX editor it would run fine.

System software is used to control and manage system resources (e.g. i/o device hardware, memory hardware, processor time), making them available to user software via standard interfaces that provide a common set of abstractions of those system resources. These abstractions make it easier for programmers to write both user software and driver software for unique i/o devices that may someday be connected to the computer and the driver software that knows how to control them must be installed as an addition to the system software so that it can also control and manage the new i/o device.

tangina mo

High level languages cant be understood by the computer as it performs all tasks in binary form. So its necessary to convert high level language into machine oriented language

Microsoft-Windows

hi,

First of all let me tell you one thing that before Microsoft there was very little scope for personal computers and softwares related to those computers. Still there were some softwares and software building programming languages. FORTRAN or formula translation, the first high level programming language, was invented by John Backus for IBM, in 1954, and released commercially, in 1957. It is still used today for programming scientific and mathematical applications. Fortran began as a digital code interpreter for the IBM 701 and was originally named Speedcoding. John Backus wanted a programming language closer to human language, which is the definition of a high level language.

At that time the softwares available were Aldus Pagemaker, Trillian, Wordstar, Computer Chess, VisiCalc Spreadsheet. WordStar - The First Word Processor Released in 1979 by Micropro International, WordStar was the first commercially successful word processing software program produced for microcomputers and the best selling software program of the early eighties. first desktop publishing program was created by Paul Brainard and a company called Aldus, the program called "Aldus Pagemaker 1.0" was released in July, 1985 for the "Macintosh" and in December, 1986, for the "IBM". If you go with the history of operating system than previously there was nothing except UNIX.

Magic Mail Monitor is (open source) best in my personal opinion. I have tried many email checkers and Magic Mail Monitor exceed them all considering the price and the features. ---- Magic Mail Monitor (MMM) is a free POP3 mail monitor with multiple accounts support. It sits silently in your system tray, and notifies you about new messages in your mailboxes. Then you can preview messages and delete unwanted mail in order to avoid spam and viruses. To help you fight spam, save time and traffic, MMM offers configurable filters, friends list, partial loading and other easy to use tools such as but no limited to execution of scripts and programs you specify. ---- Details and download link is here: http://mmm3.sourceforge.net/ Leo K.

The term "command line interface' is not actually used to describe an operating system, but a type of shell around an operating system.

A command line interface is an interface in which you enter commands, arguments and parameters as your primary method of running programs or doing work.

Depending on the operating system, the CLI may be the primary method of interfacing with the operating system.

Linux (And most Unix/Unix-like systems.) can be primarily CLI driven or GUI driven, since shells are treated as just another application in those systems.

modem

Some people, and companies like Apple. like to refer to it as the "System software."

humm i hope this is right because this is my bonas for my final.

An operating system takes control by effectively managing user input. It also manages both external and internal requests. This can include program and application requests, along with information sent via keystrokes and other protocols. The main function of any operating system is to assist the CPU in facilitating user and program functions.

There are two kinds of multitasking, the old one and the new one.

Cooperative MultiTasking, the old way, has applications share all the computers resources with each other. However, if one application didn't share, the computer would crash or other programs wouldn't work, so a new version was needed.

Preemptive MultiTasking is the new way. In this system, the computer decides how much "slice" of resources it should give to each program or service, and guarantees safety. It also makes it fairer, giving more immediate concerns more slice and less important ones less slice.

Microsoft's first operating system was MS-DOS 1.1. MS-DOS was based on the operating system 86-DOS which was purchased by Microsoft. Microsoft licensed MS-DOS 1.1 to IBM who resold it as PC-DOS 1.0.

Del is used to delete a file in command prompt.

Your question has become quite confusing because of Your Language but as per i got, i think You wanted to know that "if you can run windows 7 on a system that has 2GB RAM installed on Intel's DG31PR motherboard", right?

well I say, definately. You can run it without any problem.

infact Windows7 is the Best OS that Microsoft has ever released!

Currently. Vista Home Basic, Vista Home Premium, Vista Enterprise, Vista Business, VIsta Ultimate, XP Home and XP Pro.

There is a huge history of operating systems from MS, the most noteworthy being DOS, windows 3.1, windows 95 windows 98, windows NT and possibly Windows Me

You will need a Windows install CD or a System Restore CD for this. When you have one put it in the CD drive, turn off your computer, turn it back on, and follow the on screen instructions. If you do not have either of these cds you can call ACER and ask them for a system restore CD for your specific model of computer.