IBM PC DOS

PC DOS, IBM DOS partly, is the IBM of the 1980s until the early 2000s displaced DOS - a simple operating system - for IBM - PC compatible computer.

History

Survey

PC DOS or IBM DOS is largely identical to MS- DOS from Microsoft until about 1993, IBM has it made ​​some changes that have made a little more stable and faster operating system. This was possible because the operating system had only run on the original IBM PC, which made it possible to dispense with adjustments to not fully compatible computers. When equipped with utilities (English Tools) was mostly purchased in Central Point held at Helix and Symantec. In addition, it was equipped with the REXX known OS / 2.

From version 6.1 PC DOS was also openly positioned as a competitor to MS -DOS. It was thanks to improvements, while maintaining full compatibility (IBM also has the source code of Windows 3.x ) was the first major distribution to non-IBM PCs.

In the version 1.1 eg delivered by Compaq DOS versions there were separate OEM versions of their respective manufacturers ( Compaq, Zenith Data Systems, Wang Laboratories, Televideo, Tandy, Amstrad and Toshiba), some of which only their PCs were running. Was it mostly OEM versions of MS- DOS, there were OEM versions of PC DOS (eg DOS 3:31 Compaq / Wyse ).

The latest versions of PC DOS 7 and PC DOS 2000 (as of 2004) contained a good text editor that allow compressed file systems and have improved year - 2000 compliance and Euro support ( in the character set ). Unlike the versions up to 6.3 these are no longer based on an MS- DOS version, but have evolved completely independently by IBM.

Revision history

PC DOS uses different boot files as MS -DOS.

Graphical User Interfaces

Microsoft Windows 3.x is running under PC DOS, as this had the same code base as MS -DOS. Other graphical user interfaces for PC DOS include PC / GEOS, SEAL or OpenGEM. User interfaces in a broad sense were also based on file managers DOS 's DOS Shell and the similarly constructed, but much more powerful PC shell from the tool package PC Tools. Both shells dominated task switching.

Today's use

Like other DOS systems is PC DOS for embedded systems or system restore, as well as to PCs not for sale no operating system used.

→ see Today's using DOS systems