MS-DOS VS. Windows 95
For the dialogue between man and computer to take place, there must be a key component known as operating system. This is a special program that coordinates role and control over natural resources (hardware) computer and arranging of human-computer dialogue.
An operating system must have the ability to adapt to technological changes, while remaining compatible with previous hardware. Operating system developers should take account of developments in the underlying computer processors, in order to be eligible for the benefits they offer. The first operating system for personal computers was CP / M (short for Control Programs for Microcomputers), which appeared in 1980. Then followed by a series of popular operating system called MS-DOS (Microsoft Disk Operating System), which appeared a new version every year, the latest being removed by Microsoft DOS 6.22 (in 1994).
Choosing an operating system or another is based on machine and user preferences. One of the key factors is ease of use, something which was not initially granted importance.
To improve this aspect of ensuring a Human-Computer Dialogue enjoyable and available to everyone, not only to specialists, Microsoft has developed a program that offered a friendly work environment, called Windows 3.1. But it was not an operating system because it presupposes the DOS system. In 1995, the Windows environment has been transformed into the operating system, Windows 95 appeared.
The following lines will make a brief comparison between the two operating systems: MS-DOS and Windows 95. There are similarities between these two (they were made by Microsoft), but we emphasize the differences.
The operating system is actually a program that is launched automatically when your computer starts providing mainly the following functions:
Operations management Ø Input / Output
Ø Management support for external memory data
Ø Control of memory load, commissioning and leaving the user programs
Ø Perform interface between hardware and software
We will take a short break and will try to give you heart going as an operating system.
The engine is an operating system kernel. It deals with “the whole job (and understand the core kernel operating system). It provides the ability to read and write and the various units, it deals with memory management etc. MS-DOS kernel was represented Msdos.sys file, and Windows Kernel32.dll. MS-DOS is an operating system that only works on 16 bits, while Windows 95 is a hybrid operating system that can work on 16 bit (while maintaining compatibility with MS-DOS) but allowing 32-bit multi-site. It’s time to see what lies behind this claim that almost all users use it as the ultimate argument in a polemic Windows vs. MS-DOS.
What’s multitasking?
Multitasking can understand a system by running multiple processes (programs) simultaneously. Many do not understand why is so much fame around this thing and the first image that comes to mind is a text editor and an mp3 player (software that can listen to music ) running at the same time but I assure you that no multitasking was not possible emergence of graphical user interfaces of operating systems. They are based precisely on this. Therefore Microsoft Windows 95 could run on 80,286 processors. Microsoft Windows 3.1, and indeed can run on 80,286 processors, but this was an emulation and this was visible, leaving much to be desired performance. MS-DOS can run on 80,286 processors because it is a multitasking operating system.
All modern operating systems provide multitasking today. The differences consist of algorithms they use to “emulate” multi-site. A real multitasking can be achieved only on a system that would have one processor for each program separately. This is not entirely impossible in theory but practice field is still fantastic. And this market and mainframe servers. In November, the SOHO market (Small Office Home Office), there can be uniprocessor or dual processor systems. It is impossible that a real multitasking.
As I said, MS-DOS not enable multi-site. That unless we think TSR programs (Terminate and Stay Resident) would be the ancestors of multitasking as the monkeys are parents for us. From Microsoft Windows 3.x appears the idea of multitasking on Intel systems. This algorithm used a “round robin” which offered the possibility that the processes were run in parallel to hold, one after another, equal processing time. In fact each program is assigned a short period of time which is also called quanta. During this time the program can use CPU resources. This model will be preserved and later versions of Microsoft systems albeit with improvements. Unfortunately, this method is simple although not far from economic. The best solution is given by a particular operating system and Linux.
That’s kind of all with multitasking. Let us move on to other news for Win 9511