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- Newsgroups: comp.os.os2.programmer,comp.os.os2.advocacy,comp.os.ms-windows.advocacy,comp.os.ms-windows.programmer.win32
- Path: sparky!uunet!caen!hellgate.utah.edu!jaguar.cs.utah.edu!brian
- From: brian%jaguar.cs.utah.edu@cs.utah.edu (Brian Sturgill)
- Subject: OS/2 vs NT features list, Revision 1.4
- Date: 2 Sep 92 17:03:59 MDT
- Message-ID: <1992Sep2.170400.10092@hellgate.utah.edu>
- Followup-To: comp.os.os2.advocacy,comp.os.ms-windows.advocacy
- Originator: brian@jaguar.cs.utah.edu
- Organization: University of Utah CS Dept
- Lines: 426
-
-
- I have decided this list is mature enough to go bother the
- people in the programmer groups with it. After it gets kicked
- around a bit more I'll post it again (in the same manner), so
- don't worry about missing it if you don't follow the advocacy group.
-
- FOLLOWUPS ARE REDIRECTED ONLY TO THE ADVOCACY GROUPS, PLEASE LEAVE IT
- THAT WAY.
-
- The list below is one we've been kicking around in comp.os.os2.advocacy
- for a few days. It is intended as information about the state of features
- between the two. While NT is not yet released, much of it's features
- are already in the pre-release. This list seeks to explore the
- difference now, and in the near future between the two systems.
- Relevant add-on packages for OS/2 are also discussed.
-
- Warning: I develop for both systems, but have a bias towards NT.
- I do try to be fair though.
-
- NOTE TO THE COMP.OS.MS-WINDOWS.ADVOCACY PEOPLE.
- The natural thing for you to do when you see the number of features
- NT has over OS/2 is to be mean to OS/2. 1) This will only
- provoke the c.o.os2.advocacy people to point out known points
- like NT's not out + favorite MS bashes. 2) OS/2 is quite powerful
- as it is, and stands a good chance of being slimmed down enough to
- run on Windows 3.X sized systems. For all users, bigger is
- not necessarily better. 3) If IBM starts bundling it's add-on packages
- at reasonable prices, OS/2 is not nearly so far behind. 4) If you really
- have to... please change the subject line and start another thread.
-
- -----------
-
- OS/2 vs NT features list, Revision 1.4
-
- A "#" at the beginning of a line signifies that it has been
- changed this revision. An "@", signifies it is new this revision.
- An "!" indicates a point that definitely needs more information.
- One of the characters in front of a paragraph or a section title
- implies it is for the whole unit.
- Deletions in this revision:
- The request for a detailed feature list for LAN Server.
-
- Multiple growable heaps. // DosSubSetMem and friends do the same job.
-
- I hope to keep this thread having a high information content level.
- If you feel the need to bash either OS using this list, please do
- so in a separate thread. People bashing in this thread will be ignored.
-
- If you have correction/additions/deletetions please jump right in. If
- you're not sure and don't want to suggest it publically, e-mail me...
- If I don't know for certain already, I have access to nearly all the
- available docs for OS/2 and NT.
-
- If you know of a feature that one or the other will add in the future AND
- you have a time frame. Send it and the time frame along.
- Please specify the source of the information.
-
-
- Here is a list of relevant "list" prices.
- NT list price < $500. (Source: NT dev conf, InfoWorld)
- OS/2 2.0 list price $195 (Src: Programmer's connection)
- OS/2 2.0 Multimedia add-on*** $149 (Source: product announcement
- posted to USENET.)
- OS2 TCP/IP Base Kit** $200 (Source: product announcement
- found on ftp-os2.)
- OS2 LAN Server 2.0 Entry Package* $795 (Source: press release
- found on CompuServe.)
-
- *** OS/2's and Windows NT Multimedia support seem to be equivalent.
- I have only seen OS/2's MM feature list though, so feel free to
- correct this if you've seen both.
-
- ** OS/2 2.0's TCP/IP Base Kit contains more programs
- than comes with NT. (NT comes with only "client" programs.)
- However programming OS/2's TCP/IP requires a $500 programmers
- toolkit, and this ability comes with NT's SDK for free. Thus
- I pretend it's an even swap. Obviously for some, even many users
- this isn't the case. As NT has Berkeley sockets I suspect
- that freeware based on Berkeley's daemons will soon appear and make
- even this a moot point.
-
- #
- * Windows NT's networking features (beyond TCP/IP) are roughly equivalent
- to the OS/2 LAN Server 2.0 "Entry Package". Here I only have access to
- a features list, so if you have experience with both please
- jump in.
-
-
- ***********
- The lists below are of features in the BASIC system package.
- ***********
-
- Features currently in OS/2 2.0 but not in Windows NT
-
- Object Oriented Shell (WorkPlace Shell)
-
- Great DOS support
-
- Mediocre Windows 3.0 support (NT's is currently poor).
-
- Is actually released.
-
- Runs without a GUI.
-
- @ Can boot non-DOS systems in a VDM.
-
- @ Can be configured with less features to use less memory than NT.
- If you add OS/2 2.0's memory requirements for the
- base package + TCP/IP base + MM + Lan Server Entry you get:
- 6 + 1 + 1 + 3 = 11 megs. NT currently requires 12 and is
- targeted to use 8 megs. Thus I content neither has
- a real edge in memory usage when counting relevant add-ons.
-
- Features currently in Windows NT but not in OS/2 2.0
- System tables dynamically extensible.
- In other words no arbitrary limits of 256 processes or
- 1024 open files, etc.
-
- Quota and and Statistics hooks for most system objects.
-
- Full symmetric multiprocessing support.
-
- Generic wait on multiple events/semaphores of different types.
- This is helps prevent deadlocks. Consider the classic
- deadlock example: Two processes, P1 and P2, both want
- to access tape drives A and B. P1 locks A and waits for
- B, P2 locks B and waits for A. Deadlock.
- With the generic wait facility you say wake me when
- I have both A and B. This mechanism prevents many
- deadlock problems.
-
- Automatic stack expansion.
- OS/2 2.0 does not (in the general case) have dynamic stack
- extension. Someone inside IBM (and others) sent me this story.
- Thread 1's stack is statically sized according to the value
- you set in the executable at compile time. Worse, all pages
- of this stack are committed as the process starts, so you
- don't want to grossly oversize the stack. All other threads
- do have dynamic stack extension. Doing this somehow made
- compatibility with older API's easier.
-
- Global VM/File Buffer Cache.
- This is a common feature in most modern operating
- systems. It apparently makes disk consistency
- easier to manage.
-
- All but 60K kernel is pageable. (Microkernel design)
- All means All... everything but a small piece
- is pageable.
-
- Memory mapped files
-
- Asynchronous I/O
- OS/2 1.X had this feature but for unexplained
- reasons dropped it in 2.0. While you can do it
- with threads, you can also multi-task in DOS...
- all you have to do is write the code that intercepts
- the timer interrupt and swaps the processes.
- Apparently the 16-bit API DosReadAsynch, DosWriteAsynch
- still exist in thunked form.
- Deitel and Kogan don't mention them... anybody
- know why they're being phased out?
-
- ! Console API
- Please remain calm on this one... I am just hoping for
- some information. OS/2 2.0 only supports the
- Console API via 16-bit thunked-calls. In theory
- the 16-bit calls are there only for backwards compatibility.
- Anybody know what the future plans are?
-
- DOS, (later POSIX), OS/2 1.X and NT console apps use the same window.
- If you bring up an NT command prompt and run a DOS program
- the output occurs in the same window. Contrast this
- with OS/2 2.0... if you run the DOS "ls" command in an
- OS/2 window a DOS window appears... the output flys by and
- the window closes; often before the output can be read.
-
- Platform independent device driver support.
- Platform independence means independent of the
- hardware on which NT runs. The device driver people
- at the NT developers conference did not seem to
- believe this at first either... but after a long
- set of questions seemed convinced this was more or
- less possible. (A smaller head file contains the
- few differences that are necessary between platforms.)
-
- Dynamic loadable/unloadable file system and device drivers.
-
- Generalized Registry. (database as replacement for '.ini'
- files)
- Rather than have a "config.sys" and other initialization
- files, all system data is put into a tree-structured
- database.j
-
- Pen Support.
-
- Windows 3.1 support.
-
- Fully 32-bit drivers.
-
- GUI
- Fully 32-bit API
- Fast client/server approach.
- Separate queues per process.
- PM and Windows 3.X have one message queue for all
- applications.
- Designed to help accellerators.
- The internal routines have been changes so that
- drawing commands are buffered and sent to the
- underlying graphics drivers in a manner that
- can take advantage of graphics accellerator cards.
-
- OLE
-
- Good _published_ debug hooks.
-
- Security
- C2 level (not certified)
- ACL's for all objects.
- Logons.
- E-Mail API (X.500, can use X.400 as a transport)
- B2 hooks
- Advanced form of setuid().
- This allows servers with appropriate privileges
- to impersonate a client's identity to
- so that work can safely be performed on behalf
- of a client.
-
- RPC
- DCE support
- OLE integrated with RPC
- RPC has corresponding LPC
- NTFS
- Fast Recovery (CHKDSK gigabyte volumes in a few seconds.)
- High Reliability
- Hard Links
- Case-Sensitive Filenames
- # Automatic 8.3 names
- NTFS supports both long names and short ones.
- The short one is generated automatically
- if the long one it does not fit the 8.3 pattern.
- This is done so that DOS apps can see long-named
- files too. In effect a file has TWO names, one
- long and one short.
- ACLS
- UPS support.
-
- Volume Stripping(RAID 0) (Not just for NTFS)
-
- Multimedia
- Audio
- Waveform
- MIDI
- CD-source
- Media Control Interface.
- High-speed file streaming.
- Async event controllable.
-
- Networking
- TCP/IP
- Peer-peer file and printer sharing.
- Ability to support multiple vendors as transports
- w/common admin.
- Good network admin facilities.
- SNMP
- Berkely sockets.
- Named pipes.
- Event logging.
-
- Fast Hyper-text Help System. (OS/2's is much slower.)
- I've used both, NT's is faster, though it
- has less features than OS/2's.
- NT's is of course a variant of Windows 3.1's
- help program (which is different from
- the Windows 3.0 one).
-
- Developers provided with a common installation program.
-
- More SuperVGA drivers.
-
- @ An NT user can change their environment (e.g.) PATH without
- having to reboot for it to take effect.
-
- @ NT can generically use more than 16 megs of memory.
- OS/2 only uses the memory above 16 megs as
- a form of fast cache.
-
- @ Has seemless support for 16-bit Windows apps on XGA and 8514 displays.
-
-
- # changed both headers below to say "in the fall" as both companies
- # are now using that term in their official announcements.
-
- OS/2 2.0 will add the following in the Fall.
-
- Catch up to NT by having Windows 3.1 support.
-
- Catch up to NT by adding a 32-bit GUI.
-
- Catch up to NT by allowing 32-bit drivers.
-
- @ Catch up to NT by having seemless support of 16-bit Windows
- apps with XGA and 8514 displays.
-
- @ Installable from CD-ROM and diskettes.
-
- # Slim-down such that it will properly fit in 4 megs.
-
- @ Ship it's DDK (actually DAK Device Adaptation Kits).
-
- Probably will pass NT in SuperVGA support.
-
-
- Windows NT will add the following in the Fall.
-
- Catch-up to OS/2 in 16-bit Windows 3.0 compatibility.
-
- Smarter, easier to use OLE, first step toward Cairo.
-
- POSIX (1003.1 -- the system calls)
-
- Tape API
-
- Win32s (Run NT programs under Windows 3.1)
-
- ! Remote booting (Diskless/dataless workstations)
- (Some say OS/2 has this now... is this in the base package?)
- (There is also a question as to whether or not an NT
- Lan Manager server will be required to be able to do this.)
-
- Remote installation and maintenance support.
- This was demoed at the NT conference. The administrator
- on one machine sent a single command that told another
- machine it was to get a new version of the OS.
- The other machine told it's user that it was about to
- shutdown... shutdown, accepted the new OS, rebooted.
- All without manual intervention on the client side.
- NTFS
- Symlinks
- Sparse File
-
- @ Ship it's DDK.
-
-
- @OS/2 will add the following in 4Q92 or 1Q93:
-
- Pen API (possibly as an add-on).
-
- @NT will add the following in 4Q92 or 1Q93:
-
- Catch up to OS/2 by actually being released.
-
-
- OS/2 will add the following near October 1993:
-
- C2 and B1 security (RACF).
- Apparently there is a procedure called a PRPQ that
- allows you to get it now. It is not yet certified.
-
- Windows NT will add the following sometime in 1994:
-
- Cairo
- Cairo combines an OO shell (has a similar flavor to WPS)
- with an OO file system and OO networking. Publically
- available details are sketchy. Prototypes have been
- demoed to a lucky few.
-
-
- ***********
- The lists below are of features in add-on packages.
- ***********
-
- LAN Manager for Windows NT (Available at the time of NT's release)
- RAID 5
- Mirroring
- System admin tools for support of a site up to 50,000 nodes.
-
- ![MICROSOFT PEOPLE -- surely there's more to LM 4 NT... details?]
-
- OS/2 Multimedia (Avaliable now)
- (As far as I can tell from the feature list descriptions
- the only feature below without an analog in NT is the
- "Multimedia Data Converter Applet".)
-
- Amp/Mixer Support
- CD Digital Audio Support
- MIDI Sequencing and Synthesizer support
- Media Control Interface Support
- Multimedia I/O Manager
- Multimedia drivers cross over into DOS and Windows support.
- Synchronization/Streaming API
- Videodisc control
- Waveform Audio Support
-
- Applets
- MM Setup
- Multimedia Data Converter Applet
- Player Applets
- Volume Control
-
-
- #OS/2 Lan Server 2.0 Entry Package (Avaliable now)
- (As far as I can tell from the feature list, NT's base package
- has most of this + Local security + better RPC - (possibly)
- remote booting for clients, so let's call it even.)
-
- UPS support
- User Profile Management
- Error logging facility
- Remote booting
- Domains
- Limited RPC
- According to PC-Week does not have peer-to-peer abilities.
-
- #OS/2 Lan Server 2.0 Advanced Package (Not available for OS/2 2.0 yet)
- (Includes features of Entry Package above.)
- Local security
- Higher throughput.
- Fault tolerance (disk duplexing and disk mirroring)
-
- Brian
- --
- C. Brian Sturgill *** OS/2 2.0 is for YOU! ***
- University of Utah Microsoft needs some competition, but
- Center for Software Science -I- want to be one of the many using NT.
- brian@cs.utah.edu; CIS: 70363,1373 :-) :-) :-)
-