Malan, G., Rashid, R., Golub, D. and Baron, R. DOS as a Mach 3.0 application. In Proceedings of the USENIX Mach Symposium, USENIX, 27-40, 1991.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....reuse. 1. Introduction The technology of distributed systems using micro kernels [1] 2] is accepted as the basis to construct new operating systems called subsystems. Many of these subsystems emulate the UNIX 3 [3] 4] operating system but others emulate different systems like DOS and MacOS [5]. This work takes a new approach which uses the binary part of an existing system (MacOS) and encapsulates it in a subsystem over a micro kernel (Chorus) We previously have made the Chorus micro kernel and MacOS cohabit and cooperate [6] This previous work on cooperation and studies of the AU X ....

G. Malan, R. Rashid, D. Golub, and R. Baron, DOS as a Mach 3.0 Application.

....tree. DOS server . Continued developing our DOS application server on the i386 platform. We tested it on large applications, including Microsoft 3. 0 Windows, enhanced it by providing access from DOS applications to the Mach UNIX file system, and released the server to several alpha test sites [Malan et al. 91] We also upgraded Mach to support DOS 5.0 and distributed the MS DOS Mach microkernel environment to the academic computing community [Forin and Malan 94] Shared memory server for NORMA architectures . Developed a new, distributed shared memory server for no remote memorymultiprocessor ....

Malan, G., R. Rashid, D. Golub, and R. Baron. DOS as a Mach 3.0 application. In Proceedings of the Second USENIX Mach Symposium. USENIX, November, 1991.

....but they use source code of the UNIX operating system in their servers. However we were not interested in another UNIX like operating system but wished to add more graphical capabilities, as in the V kernel [7] to the Chorus distributed system. Similar experiments have been done over Mach 3. 0 [8] with the DOS or MacOS running as an application. 2. Chorus Mac project The Chorus Mac project began three years ago with the port of a Chorus simulator in the AU X 2 environment. The Chorus simulator is composed of a UNIX process and a library that can be used to program and test Chorus ....

G. Malan, R. Rashid, D. Golub, and R. Baron, DOS as a Mach 3.0 Application.

....each workstation, but the server on the workstation acting as the Schizo host machine, also communicates with utilizes 1 This is really the simplest case. It is quite possible that the workstation owner might be running multiple local operating system personalities (e.g. OSF 1 and a DOS server[16]) the kernels of all the other workstations and thereby uses those workstations to run its processes. This use of multiple personalities, one being the distributed system, is the key concept of the Schizo design and the reason why we named this project the Schizophrenic Workstation the ....

R. Rashid, G. Malan, D. Golub, and R. Baron. DOS as a Mach 3.0 application. In Proceedings of the Second Usenix Mach Symposium, pages 27--40, 1991.

....characteristics, as cited in [Blac92] are not directly related to TM implementation, but will have impact on its future existence. ffl Tailorability Extensibility. Various operating systems are already running on top of the Mach: UNIX BSD 4.3 [Golu90] AT T UNIX 4. 0 [Lin91] VMS [Wiec92] and DOS [Rash91]. This allows TM scheme, that acts upon Mach level, transparently to be applied to various operating systems. Our scheme requires only minor changes to kernel and, therefore, should be transparent to the Mach modifications and evolution. ffl Other characteristics: Real Time (RT) Lenn86] Fault ....

Rashid, R., Malan, G., Golub, D., and Baron, R. (November 1991) DOS as a Mach 3.0 Application. Proceedings of the Second USENIX Mach Symposium, pages 27--40.

....shared memory multiprocessors and distributed systems. It runs on SUN, Intel, IBM, and DEC uniprocessor machines, and on the RP3, Balance, Encore, and Sequent multiprocessors [87, 98] Both the UNIX operating system and the Microsoft DOS operating system can run on top of Mach as an application [35, 72]. Mach is free, and OSF 1 is a commercial version of it [14] The KSR 1 operating system is a version of OSF 1 [44] A key aspect to the portability of Mach is its logical division into a machine independent and a machine dependent part. The latter is the only one to be adapted in porting Mach, ....

Gerald Malan, Richard Rashid, David Golub,and Robert Baron. DOS as a Mach 3.0 Application. In Proceedings of the Usenix Mach Symposium, November 1991. Also available via anonymous FTP on mach.cs.cmu.edu in /usr/mach/public/doc/published/dospaper.dvi,ps.

....and ii. providing it at the device level creates unnecessary problems for the many different types of servers that would use the interface. In particular, the Mach kernel is intended to support a variety of different operating system environments, such as BSD UNIX [Golub et al. 90] MS DOS [Rashid et al. 91] and MacOS, each one exporting its own device abstraction. Our approach allows servers for these operating systems to implement their abstractions at the lowest possible level. The rest of this paper is structured as follows. In Section 2 we describe the structure of our device independent ....

Rashid, R., Malan, G., Golub, D., and Baron, R. DOS as a Mach 3.0 Application. In Proceedings of the Second USENIX Mach Symposium, This issue, November 1991.

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Malan, G., Rashid, R., Golub, D. and Baron, R. DOS as a Mach 3.0 application. In Proceedings of the USENIX Mach Symposium, USENIX, 27-40, 1991.

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Malan, G., et al. DOS as a Mach 3.0 Application

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Rashid, R. F., Malan, G., Golub, D., and Baron, R. DOS as a Mach 3.0 Application. In Proceedings of the 1991 Usenix Mach Workshop, pages 27--40, November 1991.

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