Device Manage for OS/2

Device Manage for OS/2

DevCon for OS/2 - Developer Connection
Operating systems:
ArcaOS, eComStation, IBM OS/2 Warp

Мифы о eComStation

(Unsorted)

Compilers

Tools

User Interface

REXX

Drivers/kernel

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OS Architecture

Fundamentals of operating systems
OS/2 Architecture - A Programmer's Overview (Scott E. Garfinkle, 2000, OpenOffice.org format)
RUS: Internal structure of OS/2 Warp

IBM Redbooks

SG24-4630-00 OS/2 Warp (PowerPC Edition) A First Look
SG24-4639-00 OS/2 Warp (PowerPC Edition) Graphical Subsystem

PLATFORM SPECIFIC DRIVERS (PSD)

In OS/2 and eCS systems, all the platform specific code from the operating system is removed and placed into platform specific drivers. These drivers provide an abstraction layer for the underlying hardware by allowing the OS to call generic functions to perform platform specific operations without worrying about the actual hardware implementation. The objective of the PSD drivers is to allow for the support of new hardware platforms without modifying the operating system.
There are two PSD drivers:

OS2APIC.PSD (old, IBM)
ACPI.PSD (current version)

Notes:
The PSD mechanism was implemented not perfect.

Proposals of OS extention:

(Implemented, frozen) Plugin system for drivers (by zuko)
(Not implemented) An article by Steve Mastianni. In this paper he proposes a 32 DD model for OS/2 (source)