Jumat, 24 Mei 2013

History of windows 95


After Windows 3.11, Microsoft began to develop a version of Windows are oriented to the user code-named Chicago. Chicago mmeiliki designed to support pre-emptive multitasking 32-bit as well as contained in the OS / 2 and Windows NT, although the 16-bit kernel is still there in it for reasons of backward compatibility. Win32 API first introduced in Windows NT was adopted as a new standard-based programming interface 32-bit, with Win16 compatibility is also maintained by using a technique called the "thunking". The new GUI is also owned by the operating system, although not originally planned as part of
the operating system when it was released. Indeed, some user interface elements that are owned by Cairo borrowed and added to the operating system tersbut as other aspects of the versions (notably Plug and Play). Microsoft did not change all the code to 32-bit Windows; many parts of it remained 16-bit (though not directly using real mode), for reasons of backward compatibility, performance, and development time. This and the fact that the number of flaws in the design of previous versions of Windows, create a new operating system is compromised efficiency and stability. Finally, the marketing name Microsoft uses Windows 95 as a product name for Chicago when it was released on August 24, 1995. Microsoft has two advantages of this release: 1) it is impossible for consumers to run Windows 95 on the DOS operating system instead of Microsoft's much less expensive, 2) although traces of DOS were never completely removed from the operating system, even the self-adhesive version a version of DOS to be loaded as part of the boot process, Windows 95 runs by itself on the 386 Enhanced mode, using virtual memory and memory addressing model of a flat 32-bit. Features that make the Win32 application for virtual RAM maximum of 2 gigabytes (2 gigabytes with the rest reserved for the operating system), and in theory prevent the application memory space to disrupt owned by other Win32 applications without the approval of the operating system. In this case, the functionality of Windows 95 approaching what is owned by Windows NT, although Windows 95/98/ME did not support more than 512 megabytes without editing the system configuration hassle. Behind the success of Microsoft, IBM continued to market OS / 2, to produce OS / 2 version 3.0 and OS / 2 Warp (version 4.0). IBM responded to complaints filed by consumers about the hardware requirements of high computer requested by the OS / 2 version 2.0, OS / 2 version 3.0 was much slimmer by optimizing the size and speed. Before the release of Windows 95, OS / 2 Warp 3.0 even has bundled in several major hardware providers in Germany. However, with the release of Windows 95, OS / 2 was again lost market share back, was taken over by Windows 95. May not be possible to find out what are the reasons why OS / 2 failed to gain a large market share. Although OS / 2 continues to run Windows 3.1 applications, is already no shortage again, except in a small portion of the Windows API called Win32s. Unlike Windows 3.1, IBM does not have access to the source code of Windows 95 and do not want to use the time and resources available for the Win32 API emulation. IBM also introduced OS / 2 in the case of United States v. Microsoft, to blame the marketing tactics on Microsoft's part, but a lot of people may agree that the problem in the marketing division and IBM was very less support from software developers that led to the failures OS / 2. Before you replace it with a new version of Windows, Microsoft released Windows 95 in five different versions, which is as follows:
Windows 95 - the actual release of Windows 95
Windows 95 A - includes updates Windows 95 Original Service Release 1 (OSR1) is entered directly to the installation.
Windows 95 B - includes several other major updates, as well as the FAT32 file system, and Internet Explorer 3.0. This version is also known as Windows 95 OSR2, or many people in Indonesia call it Windows 97.
Windows 95 B USB - Windows 95 or Windows 95 OSR2.1 is a version that offers support for hardware-based bus Universal Serial Bus / USB.
Windows 95 C - or Windows 95 OSR2.5 includes all the above features, plus Internet Explorer 4.0. This version is the most recently released version of Windows 95 series.
Windows 95 OSR2, OSR2.1 and OSR2.5 not released to the public, but only to OEMs who want to use the operating system into the computer makes. Some companies even sell OEM new hard disk with operating system Windows 95 OSR2 in it. In addition to the features contained in the Windows 95, Microsoft also introduced the Microsoft Plus! for Windows 95 that includes several additional features that are not owned by Windows 95.

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