Tutorial on data base machines Berra, P. Bruce
ACM Annual Conference/Annual Meeting: Proceedings of the ACM '81 conference,
01/1981
Conference Proceeding
The cost of the hardware components that make up modern day digital computers continues to drop at a rapid rate. Along with this cost reduction there exists a simultaneous increase in the number of ...components that one can place on an integrated circuit chip. This leads to what seems to be an ever decreasing cost of hardware combined with a continued increase in functional capability. When these improvements are coupled with the ever increasing costs of software, primarily caused by increased personnel costs, it becomes imperative to consider moving functions that are primarily executed in software, to hardware.
One field that has received increased attention vis-a-vis movement of software functions to hardware is the database management field. Owing to size and complexity, managing databases becomes increasingly difficult. Over the past few years, increasing efforts have been expended in the study of new types of hardware called database machines which are designed solely for the purpose of managing data. This research has been driven by the decreasing cost of hardware and by the need for performance improvements due to increased database size and complexity and a maturing database theory.
Data base machines Berra, P. Bruce
SIGIR forum,
12/1977, Letnik:
12, Številka:
3
Journal Article
Odprti dostop
In the past few years there has been increased emphasis in the use of new and different hardware in the data base management field. This has given rise to an interesting area of research called data ...base machines. The objectives are to implement many of the traditional software data base management functions in hardware in order to increase performance and capability.The reasons for increased research activity in data base machines are many fold. The modern digital computer with all its power still executes only a single instruction at a time al beit with a few exceptions. Since the digital computer was primarily designed for numeric applications, the ratio of useful instructions to overhead instructions tends to be very low in non-numeric applications such as data base management. There is an increasing body of knowledge that indicates that parallelism and addressing by content can be used to advantage in such data base management functions as retrieval and update. The above reasons coupled with the fact that software and personnel costs continued to rise while hardware costs continue to decrease makes it imperative that researchers find new solutions to the data base management problem that take maximum advantage of hardware architecture and technology.In this paper a brief review of current efforts in data base machines is presented. A review of the more important functions performed in data base management is given first. This is followed by a brief discussion of mini computer implementations. Then a review of some of the current efforts in data base machines is given. Finally, a few thoughts are presented on future trends.
In recent years increased emphasis has been given to the solution of non-numeric processing problems using novel computer architectures. These architectures have included associative memories and ...processors distributed logic devices front end and back end organizations and computers developed solely for handling data. In this session the panelists will discuss various aspects of computer architecture and/or non-numeric processing, present some problem areas and indicate some directions for future research. The form of the session will include short presentations by the panelists, discussion among the panelists, and discussion between the panelists end the audience.
Associative memories and processors have been discussed in the literature for the past 15 years and a small number of hardware devices have actually been built. The usefulness of these devices can ...only be proven through actual applications. A number of these applications have been considered and include air traffic control, computer graphics, information retrieval, numerical analysis, networks and among others, data base management.
Associative memories and processors have been discussed in the literature for the past 15 years and a small number of hardware devices have actually been built (21). A number of applications have ...been considered and include air traffic control (22), computer graphics (24, 25), information retrieval (9), numerical analysis (15), networks (18, 19) and among others, data base management (2, 4-8, 10, 11, 13, 17).
A significant percentage of present computer resources are expended in the processing of large data bases. Of this, a great deal is wasted by processing largely non-sequential data by sequential means. With hardware costs going down; and software and personnel costs going up it is important to look at the impact of non-sequential computer hardware on data base management (DBM). Based upon previous research in the application of associative processing devices to DBM, it appears that the opportunity exists for increased efficiencies by utilizing these devices in conjunction with sequential computers. In this paper, some of the advantages and limitations of these devices are presented and some brief thoughts are given concerning this author's view of the future. It is assumed here that the reader has a working knowledge of associative processors and DBM.
Recently, much attention has been paid to interactive temporal models which let authors define possible interactions with users and represent the dynamic organization of hypermedia documents. The ...possibility of user interaction makes it very hard for authors to predict the course of presentation and to author a document without an authoring tool. The authoring tool must then be designed with a rich model representing the dynamic temporal structure of interactive multimedia documents. This temporal structure model should be able to specify both the temporal composition of interactive documents and their synchronization. We investigate possible user interactions and we design a new interactive temporal structure model based on the time interval model called the "transitional object composition Petri net" (TOCPN). The novel features of the TOCPN include the capability of expressing the dynamic structure of interactive multimedia documents, providing a synchronization mechanism for various media with various temporal relations, supporting sharing and reusing of existing objects, and supporting composite objects as well as atomic objects. In this paper, we also define the requirements of the authoring tool and its help tools, and we provide a preliminary architecture for the authoring tool.
A computer based system that plans and optimizes the manufacture of components on automated machines is presented. The input to the system consists of information regarding the machining operations ...that are to be performed in the manufacture of the component. Utilizing this information the system selects a member from the set of automated machines that can perform the operations. It then selects tooling based upon the machine parameters and raw material characteristics. The optimum technology parameters are determined based upon the criterion of minimum time of manufacture. Cost and time values are calculated for the particular machine under consideration. If more than one machine is available in the set of machines that can perform the work, the system repeats the process for each machine. The output from the system consists of optimum technology parameters, tooling, costs, times, etc. for each machine. Thus, the optimum machine can also be selected. The output is then utilized to generate the necessary controls for the automated manufacture of the component.
RELACS a Relational Associative Computer System Oliver, Ellen J.; Berra, P. Bruce
Proceedings of the fifth workshop on Computer architecture for non-numeric processing,
03/1980
Conference Proceeding
Recent advances in LSI, VLSI and memory technology have led to a reduction in hardware cost and an increase in mass storage capacity such that an associative array memory can be produced and ...supported. Toward this end, in this paper such an associative array computer called RELational Associative Computer System (RELACS) is proposed.
The data base management systems (DBMS) area has been growing at an accelerating pace over the past few years. There have been and are DBMS studies being conducted at many different government, ...industrial and university establishments. The work however, is primarily concerned with the software and hardware problems of building DBMS with unique capabilities. However, large scale research is not being conducted in the area of determining the interface between the DBMS and the data base problems they were created to solve. Each data base problem is as unique as the users of DBMS.
