FEATURE OS/2 Warp Windows 95
32-bit Window Management Yes No (1)
32-bit Graphics Subsystem Yes No (2)
32-bit Printing Subsystem Yes Yes
32-bit Multimedia Subsystem Yes Yes
32-bit Kernel Yes Yes
Demand Paged Virtual Memory Yes Yes
HPFS Support Yes No
Non-locking Input Queue (3) Yes No
(Applications can keep running)
(1) USER is 16-bit, non-reentrant code
(2) 50% of GDI calls are serviced by 16-bit, non-reentrant code
(3) OS/2 Warp, new version of OS/2, has an engine that will unlock
the input queue if it is locked
FEATURE OS/2 Warp Windows 95
16-bit OS/2 PM Applications Yes No
32-bit OS/2 PM Applications Yes No
Win32s Applications (Ver 1.0 & 1.1) Yes Yes
Preemptive Multitasking (4) Yes No
Win16 Application Support Yes Yes
Win16 Device Driver Support Yes Some (5)
Number of 32-bit Applications 2000+ 0 (6)
Available
(4) See chart on multitasking comparison
(5) Windows 3.x communications drivers need to be re-written
(6) Native Windows 95 applications
FEATURE OS/2 Warp Windows 95
Preemptive of 32-bit Os/2 and Win32s Yes No
Version 1.1 applications
Preemptive of DOS Applications Yes Yes
Preemptive of Win16 Applications Yes No
Preemptive of mixed 16/32-bit Yes No (7)
Applications
Multiple, Protected Win16 VDMs Yes No (8)
Crash Protection Yes No (9)
Preemptive Multi-threading Yes Yes
(7) 16 & 32 Bit OS/2, Win16, and Win32S V1.1 applications
(8) WinMUTEX prohibits access to USER and portions of GDI
when a Win16 application is executing
(9) All 16-bit applications share a single address space - the
System Virtual Machine (VM)
(10) Key operating system code structures (USER and GDI) share
the System VM address space with 16-bit applications
FEATURE OS/2 Warp Windows 95
Folder Work Areas Yes No
Integration with operating SOM Yes No (10)
Launch Pad Yes Yes
Drag & Drop Deletion Yes No
Drag & Drop Faxing Yes Yes
Drag & Drop Access Paths (change Yes No
execution paths it will still work)
Object Type Templates Yes No
Parent Folder Closing Options Yes No
(10) Windows 95 shell components are not OLE 2.01 objects"
FEATURE OS/2 Warp Windows 95
Image Viewer Yes No
Photo CD Support Yes No
Autodesk Animation Yes No
Play any Audio File from Internet Yes No
Audio/Video Synch Manager Yes No
MPEG Support Yes Yes
32-bit Audio/Video Playback Yes Yes
FEATURE OS/2 Warp Windows 95
Internet Access Tools Yes No
FTP Yes No
Telnet Yes No
Gopher Yes No
Newsreader Yes No
WEB Explorer Yes No
CompuServe Front-End Yes No
Word Processor Yes No (11)
Spreadsheet Yes No
Database Yes No
Charting Yes No
Report Writer Yes No
Electronic Mail Yes Yes
Image Viewer Yes No
FAX Yes Yes
Phonebook Yes No
Personal Information Mgr Yes No
Sys Info Yes No
VideoIn Yes No
Video Conferencing Yes No
(11) Windows 95 comes with a simple text editor, not a word processor
King, Adrain, "Memory Management, the Win32(R)Subsystem, and Internal Synchronization in Chicago",Microsoft Systems Journal,May 1994,pp. 57-61.
Pietrek, Matt, "Stepping Up to 32 Bits:Chicago's Process, Thread and Memory Management",Microsoft Systems Journal, September 1994,pp. 27-41.
Pietrek, Matt, "Investingating the Hybrid Windowing and Messaging Architecture of Chicago", Microsoft Systems Journal, September 1994,pp. 15-30.
Pietrek, Matt,"Which Win32 is For You". PC Magazine. September 1994
Notice: The information contained in this document represents the current view of IBM Corporation on the issues discussed at the date of publication. Because IBM must respond to changing market conditions, it should not be interpreted to be a commitment on the part of IBM. (All information, claims, references, and comparisons relating to Windows 95 in this document are based upon non-confidential information currently available as of the date of publication.) This document is for informational purposes only. IBM makes NO WARRANTIES, EXPRESSED OR IMPLIED, IN THIS SUMMARY.
1994 IBM Corporation. All Rights Reserved.
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