Hierarchical File System Research Articles

A tool to aid in the installation of complex software systems

AbstractThis paper describes a programming language, SIDL, in which various aspects of software installation can be modeled. SIDL supports hierarchical file systems, computers, and processes for executing programs to produce new programs and data. An example, illustrating the installation of Ratfor, and experience with the use of SIDL for describing the installation of a large software system are included.

An object-based virtual operating system for the Ada programming support environment

As part of a major effort to increase programmer productivity, the U.S. Department of Defense has supported the design of an Ada Programming Support Environment (APSE) based on the Pebbleman/Stoneman sequence of documents [4]. We have recently completed the first phase of this design, incorporating a standardized re-hostable virtual operating system and a retargetable Ada compiler with appropriate support tools. To support the coexistence on this system of many large and small software development projects, a sophisticated centralized database has been proposed that incorporates the concepts of object-based architecture [5] as well as more conventional hierarchical file systems [1].

A simple technique for controlled communication among separately compiled modules

AbstractA simple technique for communication among separately compiled modules using the existing facilities of most operating systems is proposed. The access control capabilities of existing hierarchical file systems can be used to control access to shared objects (e.g. procedures, types, data structures). Information about shared objects, such as type and date/time of compilation, is stored in description files, and access to a description file implies access to those objects. Declarations cause the appropriate information to be maintained in the description files. The advantage of this approach is that it is based on existing mechanisms with which most programmers are well acquainted.

The UNIX Time-Sharing System†

UNIX∗ is a general-purpose, multi-user, interactive operating system for the larger Digital Equipment Corporation PDP-11 and the Interdata 8/32 computers. It offers a number of features seldom found even in larger operating systems, including (i) A hierarchical file system incorporating demountable volumes, (ii) Compatible file, device, and inter-process I/O, (iii) The ability to initiate asynchronous processes, (iv) System command language selectable on a per-user basis, (v) Over 100 subsystems including a dozen languages, (vi) High degree of portability. This paper discusses the nature and implementation of the file system and of the user command interface.

The UNIX time-sharing system

UNIX is a general-purpose, multi-user, interactive operating system for the Digital Equipment Corporation PDP-11/40 and 11/45 computers. It offers a number of features seldom found even in larger operating systems, including: (1) a hierarchical file system incorporating demountable volumes; (2) compatible file, device, and inter-process I/O; (3) the ability to initiate asynchronous processes; (4) system command language selectable on a per-user basis; and (5) over 100 subsystems including a dozen languages. This paper discusses the nature and implementation of the file system and of the user command interface.

The UNIX time-sharing system

UNIX is a general-purpose, multi-user, interactive operating system for the Digital Equipment Corporation PDP-1 1/40 and 11/45 computers. It offers a number of features seldom found even in larger operating systems, including 1. A hierarchical file system incorporating demountable volumes, 2. Compatible file, device, and inter-process I/O, 3. The ability to initiate asynchronous processes, 4. System command language selectable on a per-user basis, 5. Over 100 subsystems including a dozen languages. This paper discusses the usage and implementation of the file system and of the user command interface.