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Topic: X86 DOS Comparison

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	DOS - Wikipedia, the free encyclopedia
		DOS was one of the first operating systems for the PC compatible platform, and the first on that platform to gain widespread use (it was still widespread more than 10 years later).
		Still later versions of MS Windows ran independently of DOS but included much of the old code such that it could run in virtual machines under the new OS and the latest versions of MS Windows are continually dropping ever more of the DOS ancestry.
		The DOS operating system for DEC PDP-11 minicomputers (this OS and the computers it ran on were nearly obsolete by the time PCs became common, with various descendants and other replacements).
	en.wikipedia.org /wiki/DOS (1221 words)

	X86 DOS Comparison - Wikipedia, the free encyclopedia
		The correct title of this article is x86 DOS Comparison.
		The initial letter is capitalized due to technical restrictions.
		Other DOS versions supporting FAT32 may allow a larger partition size closer to the theoretical ~2TB maximum suggested by FAT32's specifications.
	en.wikipedia.org /wiki/X86_DOS_Comparison (659 words)

	Encyclopedia: X86 DOS Comparison (Site not responding. Last check: 2007-11-05)
		DOS was one of the first operating systems for the PCcompatible platform, and the first on that platform to gainwidespread use (it was still widespread more than 10 years later).This was a quick and messy affair (the variant MS-DOS, sometimescolloquially referred to as Messy DOS, was developed fromQDOS, which literally meant"Quick and Dirty Operating System").
		The DOS operating system for the Apple Computer's Apple II family of computers.This was the primary operating system for this family from 1979with the introduction of the floppy disk drive until 1983 with theintroduction of ProDOS;many people continued using it long after that date.
		Windows 95 still allowed dual-booting with DOS on the same disk partition, be it a Microsoft or a competing release, but it made little sense to the user and could endanger long file names.
	www.nationmaster.com /encyclopedia/X86-DOS-Comparison (342 words)

	MacKiDo/Myths/OS_evolution
		DOS started with a filing system that was called FAT -- this was roughly equivalent to HFS, but more limited.
		I do believe there are very small areas where Windows is superior, especially for small areas of time.
		Much of the time it was Apple doing something like ADB, or NuBus (PnP self configuring slots) and it taking 5 or 10 years for PCs to start the transition to catch up (with many thumps along the way).
	www.mackido.com /Myths/OS_evolution.html (3272 words)

	Encyclopedia (Site not responding. Last check: 2007-11-05)
		The primary issue was the future of more advanced operating systems - Microsoft favouring Windows because it was easier to market and they owned 100% of it, IBM favouring the much more ambitious and technically sophisticated joint IBM/Microsoft OS/2 project - but the ramifications for the IBM-Microsoft business relationship were broader.
		The final iteration of the DOS wars came with the more-or-less simultaneous release of PC-DOS 7.0 and Novell DOS 7.0.
		Presumably it could still be possible to start Windows from a non-Microsoft version of DOS, but then during the Windows session, the foreign DOS utilities would not see long file names and consequently could not preserve them during writing operations.
	www.stylokna.pl /wikipedia/PC-DOS (794 words)

	DOES DOS STILL LIVE IN WINDOWS XP? -PC VS APPLE (Site not responding. Last check: 2007-11-05)
		In 1998, Windows NT 5.0 was estimated to have 20 million lines of code; by the time it was renamed Windows 2000 (in 1999) it had between 35 million and 60 million lines of code, depending on who you believe.
		(As points of comparison, Solaris has held pretty stable at about 7 to 8 million lines of code for the last few releases, and Linux, even with the addition of X Windows and Apache, is still under 5 million lines of code.) ----Microsoft has claimed that it spent 500 people-years to make Windows 2000 reliable.
		The only trace of DOS is in the concept of filename extensions (which are also present in Mac OSX) and the command prompt, which is actually a program running in NT much like a terminal in Unix or OSX.
	www.jmusheneaux.com /index1.htm (6359 words)

	PC Processors Guide by x86.org (Site not responding. Last check: 2007-11-05)
		Today, the x86 market is a multi-billion dollar industry, selling tens-of-millions of units per year.
		x86 compatibility is acheived internally via a hardware translation mechanism.
		EPIC is a fancy acronym that Intel invented to obfuscate the fact that they do not want the public appearance that their Merced microprocessor is actually a VLIW design.
	www.x86.org /articles/computalk/help.htm (3924 words)

	USS Clueless - X86 Mac - getting from A to B
		It is the number and kind and variety of apps which is the ultimate source of the OS's value; the features of the OS itself are of minor importance by comparison except to a relatively small population of OS groupies.
		Their PPC apps would not work on the X86 Mac, and many of them would not have been ported, and there'd be no replacements available.
		I do not believe that any existing X86 processor, or any which is expected to be released in the next 12 months, is capable of emulating PPC code at a speed equivalent to direct execution on a 1.25 GHz G4, no matter what approach is taken to it (such as binary recompilation).
	denbeste.nu /cd_log_entries/2003/05/X86Mac-gettingfromAtoB.shtml (4170 words)

	MS-DOS - Wikipedia, the free encyclopedia
		IBM and Microsoft both released versions of DOS; the IBM version was supplied with the IBM PC and known as PC-DOS.
		PC DOS 4.0 - July 1988 - added the DOS Shell, a graphical menu selector, and support for hard disks of >32MB using the format from Compaq DOS 3.31.
		Although its role as a desktop computer operating system has greatly diminished, today it is still used in various embedded x86 systems due to its simplistic architecture, minimal memory requirements, and minimal processor speed requirements.
	en.wikipedia.org /wiki/MSDOS (1801 words)

	Middle East Open Encyclopedia: PC-DOS (Site not responding. Last check: 2007-11-05)
		Other companies also produced their own branded DOS versions: mostly just MS-DOS under licence from Microsoft, but the MS-DOS based Compaq DOS included significant customisation, notably with version 3.31 which was the most advanced DOS on the market for quite some time (if we ignore the CP/M-86 and DR-DOS family of products).
		The primary issue was the future of more advanced operating systems—Microsoft favouring Windows because it was easier to market and they owned 100% of it, IBM favouring the much more ambitious and technically sophisticated joint IBM/Microsoft OS/2 project—but the ramifications for the IBM-Microsoft business relationship were broader.
		The last competition of the DOS wars came with the more-or-less simultaneous release of PC-DOS 7.0 and Novell DOS 7.0.
	www.baghdadmuseum.org /ref?title=PC-DOS (871 words)

	OpenBSD 3.4 changes
		Do a dummy password calculation for nonexistent usernames in sshd(8), to prevent username discovery by timing.
		When doing pubkey authentication in ssh(1), prefer agent-stored keys that are referred to in the config file.
		Do a proper bounds check when reading in the lynx(1) news server name from a file.
	www.openbsd.org /plus34.html (8733 words)

	O'Reilly Network: The Caldera v. Microsoft Dossier (Site not responding. Last check: 2007-11-05)
		Caldera responded to these motions in May 1999, and a comparison of Caldera's detailed responses on the one hand, with its somewhat sketchy initial complaints on the other, shows that Microsoft did Caldera (and the public) an enormous service by filing the summary judgment motions: Caldera had to respond with richly-detailed motions of its own.
		DOS in fact is not dead: every time someone runs Windows 95, they are also running version 7 of MS-DOS.
		It is very difficult to do technically, we have made it a moving target and we have some visual copyright and patent protection.
	www.oreillynet.com /pub/a/network/2000/02/07/schulman.html (2927 words)

	Review of Operating Systems
		Because DOS has been such a phenomenon in OS history, that it ought to have a place here, despite its absolute nullity (the only service of it that is used rather than worked around is the filesystem, which is the worst piece of junk ever implemented).
		Etherboot and its successor NILO allow x86 PCs to boot an operating system across the network; they include code and tools for producing EPROMS that can be placed on the corresponding network card sockets so that diskless PCs can download and start an operating system kernel, using standard protocols (bootp, dhcp, tftp).
		From what the webpage shows, the book doesn't seem to do much justice to modern Unices, although it shows that what is presented as "great innovation" in the Unix world is but getting on par with decades-old systems.
	tunes.org /Review/OSes.html (3214 words)

	Host/Target specific installation notes for GCC - GNU Project - Free Software Foundation (FSF)
		However, as a general user, do not attempt to replace the system compiler with this release.
		This target is a little tricky to build because we have to distinguish it from the native tools (so it gets headers, startups, and libraries from the right place) while making the tools not think we're actually building a cross compiler.
		Do not install Sun patch 107058-01 until after Sun releases a complete patch for bug 4210064.
	gcc.gnu.org /install/specific.html (7327 words)

	Motion To Intervene in the Government VS Microsoft. www.views.com (Site not responding. Last check: 2007-11-05)
		under DOS and do not use the Windows API are subject to
		Plaintiff fails to understand that the x86 DOS standard is
		DOS software and hardware systems are the first victims of
	www.views.com (11507 words)

	OPUS - Policies (Site not responding. Last check: 2007-11-05)
		You must use a DOS emulation window and run teqc.exe on the command line.
		DOS 5.x or Windows 3.1.1 on 386/7 (with math-coprocessor) or higher*
		DOS 5.x or Windows 3.1.1 on 386SX (without math-coprocessor) or higher*
	www.ngs.noaa.gov /OPUS/Teqc/teqc.html (228 words)

	Pentium Compiler FAQ
		While many people are successfuly using PGCC built kernels you may experience problems, and if you do the PGCC maintainers are only really interested in bug reports which also identify the source of the problem.
		Unfortunately, the x86 ABI (Application Binary Interface) specifies an alignment of 4 bytes, whereas 8 bytes would be optimal.
		Stripping down the size of the file that exhibits a problem as much as possible is also an invaluable aid: a single, small file is easier to debug than some dubious error in one of the 23 source files.
	www.goof.com /pcg/pgcc-faq.html (3894 words)

	[No title] (Site not responding. Last check: 2007-11-05)
		Certainly the easiest way to integrate PCs into a Sun environment is to use Solaris x86, a version of the Solaris operating system designed to run on Intel-based machines.
		Therefore the first approach we discuss is to run software called PC-NFS, which allows a DOS or Windows PC to access Sun servers across an ethernet network.
		O-----------------------------ethernet------------------------O Figure 3 Comparison of Solaris and NetWare protocol stacks ____________________________________________________________________________ where the incompatibility arises, as shown in Figure 3.
	sunsite.cs.msu.su /vic/sun-rel.2e (706 words)

	Encyclopedia article: X86 DOS Comparison (Site not responding. Last check: 2007-11-05)
		October 1980: Microsoft (additional info and facts about Microsoft) pays less than US$100,000 for the right to sell SCP's DOS to an unnamed client (IBM (additional info and facts about IBM)).
		January 1997: Novell sells Novell DOS to Caldera Systems (additional info and facts about Caldera Systems), who release it as open-source OpenDOS (additional info and facts about OpenDOS) 7.01
		Basic general information about the DOS packages: creator/company, file systems supported, etc.
	www.absoluteastronomy.com /encyclopedia/x/x8/x86_dos_comparison2.htm (904 words)

	Andrew Schulman, Software Litigation Consulting
		Given error messages displayed by defendant’s product when plaintiff’s software is run, used Windows and DOS disassemblers and debuggers to trace back from the error messages to the lines of code that produced them; wrote reports assessing whether the error messages were technically necessary, bugs, or deliberate incompatibilities.
		Automated comparison between over 1 million lines of source code (C/C++, Java, Visual Basic, HTML, resource scripts, help scripts, etc.) produced by defendants and plaintiffs, to find percentage overlap, while filtering out common boilerplate code, and code “constrained” by the application domain; reported results in terms of Altai abstraction-filtration-comparison test.
		Examine binary and source code to show evolution of software over five versions, measuring percentage overlap between each, and showing that despite minimal overlap between first and last version, defendant’s first version (stipulated to be based on plaintiff’s software) acted as “scaffolding” within which defendant’s final version was constructed.
	www.undoc.com (754 words)

	Slim Devices : Support : FAQ
		Do I have to re-enter the IP address configuration when Squeezebox is power-cycled?
		I have some audio files or radio stations that do not play when using the digital outputs on my Squeezebox, but do with the analog.
		The most effective way to do this is to restart your Squeezebox by holding down the power button for 5 seconds.
	www.slimdevices.com /su_faq.html (10510 words)

	Denial of Service via Algorithmic Complexity Attacks
		This paper focuses on DoS attacks that may be mounted from across a network, targeting servers with the data that they might observe and store in a hash table as part of their normal operation.
		We anticipate that, if we were to run with the default 5-minute timeout, the latency swings would have a longer period and a greater amplitude, do to the ten times larger queues of unprocessed events which would be accumulated.
		Instead, either the application must use algorithms that do not have predictable worst-case inputs, or the application must be able to detect when it is experiencing worst-case behavior and take corrective action.
	www.cs.rice.edu /~scrosby/hash/CrosbyWallach_UsenixSec2003 (7833 words)

	Paul Hsieh's Programming Page
		Often with large projects worked on by multiple teams with interdependencies the way to build all the pieces is a complicated windy series of scripts, makes ordered sub-builds, and the way to do it is subject to change and is tracked only by word of mouth.
		It is often necessary to do more than one pass over the sub-directories to build the whole system.
		Things like this have a hidden cost associated with them, in that it is harmful to all future development on a given code base which relies on this.
	www.azillionmonkeys.com /qed/programming.html (2024 words)

	[No title]
		Clearly, there is an internal range check, but rather than an unsigned comparison, a signed comparison is performed.
		In other words, the microcode contains instructions equivalent to CMP ECX, 00000014h JG bad_index instead of CMP ECX, 00000014h JA bad_index This improper comparison is present in the microcode for both RDMSR and WRMSR instructions, as it is possible to set MSRs above 80000000h as well as read them.
		Because the high- numbered aliases for MSRs 03h, 0Ah, and 0Fh do not generate exceptions, the microcode clearly includes specific tests for those three values in order to generate exceptions, rather than including some form of "valid" bit for each MSR.
	www.x86.org /ftp/articles/p5msr/pentiummsrs.txt (641 words)

	Computer, Telephony and Electronics Glossary and Dictionary
		A third version called X-Modem1K used 1024 byte blocks and CRC but was never popular due to the fact Z-Modem was already popularly in use and was no slower but had a better error detection scheme.
		Since XP is a preemptive 32 bit OS that is NOT backward compatible to DOS entirely, it is also more easily ported to other types of processors, such as RISC and Motorola, instead of only Intel and Intel look alikes.
		There have been major security issues in the first three months since the release of XP, though it was supposed to be the most secure OS ever, according to Microsoft.
	www.csgnetwork.com /glossaryx.html (4147 words)

	emulation.net
		It is intended for running old DOS games on modern hardware.
		QEmu is used in DarWINE, which aims to enable software compiled for MS Windows to run natively under OS X. As QEMU requires no host kernel patches to run, it is very safe and easy to use.
		However, it should be enough to do simple tasks.
	emulation.victoly.com /windoze (821 words)

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