Operating Systems

real time os is most imp bcz there is lot of need for the applicaion on os bt bcz of time & correctness the o/p is not so goo. using rtos we cn create the crrct output for ahe application

If you want to upgrade the OS the G4 can run Mac OS X up to version 10.5 (Leopard) which can be purchased from any Mac software supplier. To use 10.6 (Snow Leopard) will require a new Mac with an Intel processor.

Because they are a crappy company

No, high-level programming languages do that.

A closed system is defined as a system which is self contained. It does not exchange material, information or energy with its environment for example system in manufacturing are often designed to minimise unwanted exchanges with the environment outside the system, so that manufacturing process can operate without disturbance from supplier, customer etc. A computer programme is also a relatively closed system because it accepts only previously defined inputs, process them & provides previously defined outputs.

open system exchanges information, material & energy with the environment i/c random & undefined inputs, examples are biological system & organisational system.

It is no longer sold.

We use it in vehicle AC systems, as well. It's not harmful to the AC system and won't contaminate it, and it allows you to spray the system with soap and water without running the risk of it getting into the refrigeration system low side, since the entire system is charged to 250 psi of positive pressure.

system sw

application sw

utilities

An operating system (OS) is the first layer of software installed on a computer that talks directly with the hardware. All other applications are installed on top of the OS and make use of its drivers and function calls to run. Some examples are:

- Windows

- Linux

- Unix

- MacOS

Spooling is an acronym for Simultaneous Peripheral Operation On-Line and involves placement of data in temporary working area for another program to process. Buffering on the hand, is preloading data into a reserved area of memory which is called the buffer.

called group or the number of sheets in ms excel is called work sheet . note:(it is also called work book)

MS-DOS is a look-alike and work-alike of CP/M, only it was written for 8086/8088 processors. CP/M was originally written for 8080 processors.

I THINK KERNAL IS THE INNERMOST PART OF THE COMPUTER.

AND ALL REATED TO HARDWARE MEANS TIME SHARNG,MEMORY MANAGEMENT ETC IS DONE BY KERNAL.

WHILE SHELL IS OUTER MOST PART OF COMPUTER.

IT ACTS AS AN INTERFACE B/W USE AND OS.

IN B/W KERNAL AND SHELL THR IS OS.

O.S IS IN BETWEEN KERNAL AND SHELL

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I will take it this way...

Superficial idea about the shell communication is very simple.

Shell is a program(for Linux a process) which has been written to using the Kernal modules(Kernal is again a software program consist of many module).Kernal module provides different API which the shell programmer use to call depending upon the command placed by the user.

Writting our own shell is bit difficult as it need through understanding of how the kenel behaves.

install cd

Your question is to board to answer. There are many operating systems written in many different program languages. Asking this question this way is like asking for a water pump for a car. What make, model, year and on. If your interested in program threads there are many books available on different program languages. As for windows XP writing threads or rewriting threads will make the system very unstable or even inoperable. This type of thing is best left to experienced programmers (Microsoft Programmer's).

The Open Home operating system does not exist and no results can be found for it. The main operating systems are Windows, Linux and Mac OS. An open home operating system may be a computer without an operating system.

There is basically no difference. Either the OS supports more than 1 user or it doesn't. Windows 7 for example supports single or multi users. Other Windows 7 tips and tricks available at: http://www.waltwachon.weebly.com

Sorry but for me the fathers of OS are Kenneth Lane Thompson and Dennis Ritchie, creators of UNIX

Bill Gates

My operating system is [Windows, OS X, Linux, FreeBSD, Solaris 10, BeOS, AmigaOS, FreeDOS, Syllable].

multiprogrammed batch system can run more than one program at the same time.










-L

Preemptive Multitasking basically involves the operating system sharing CPU time among many processes. An executing process is terminated when its time slice finished and the the CPU control is given to the next process. All processes get CPU time.

In Cooperative Multitasking, however, one process can hold the CPU for as long as it needs it. For the cooperative to work, all programmes must cooperate, hence the name.

The CPU is connected to all the peripherals, which include the keyboard, the monitor, the speakers, and anything else that is connected to your computer. Strictly speaking, the CPU is physically connected to the motherboard.

NFS is the Network File System, and allows directories from systems to be used in other systems in a sharing arrangement.

me too

in multiprogramming system, when two or more user use program or file at same time. the MMU of OS share pages of the process with the users. these pages is called shared pages