Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | ACM Digital Library |
|---|---|
| Author | Miyoshi, Akira |
| Abstract | Because the computer is playing an increasing important role in the community, its availability has become an essential and inherent factor. The availability of a computer is defined by the formula: availability &equil; 100×MTBF/(MTBF + MTTR) (%) where MTBF &equil; mean time between failures MTTR &equil; mean time to repair. The techniques for components such as MSI, LSI and IC and for manufacturing have drastically improved the MTBF during the relatively short history of the computer. However, no special systematic care has been taken to improve the MTTR, except the introduction of testing programs which verify functional operations of computer units. When a testing program encounters an irregular operation, it is not an easy task for a maintainer to find a failing component. As a matter of fact, much training is needed in this area for maintainers and customer engineers. Recently, a hardware-oriented fault diagnostic program was developed for medium-and large-scale computers. The main purpose of this program is to localize a failing component within some replaceable components. The diagnostic program is generated automatically, with considerations given to the logical or functional behavior of the computer components. This paper describes some phases of the fault diagnostic program for TOSBAC - 5400/150. The TOSBAC - 5400/150 is a microprogrammed computer with self-diagnosis capabilities. The design goal is to limit MTTR to less than 30 minutes and the diagnostic resolution is within three chips. The replaceable unit is an IC chip. The test pattern generator (TPG) was developed to generate the fault diagnostic program. The TPG is a total program system which comprises the logic extractor, the test generator, the test evaluator, the fault dictionary builder and the test editor. The test editor is the interface program of the TPG and the diagnostic hardware of the TOSBAC - 5400/150. (See Figure 1 for a schematic view of the TPG). Replacement of a part of the test editor makes it possible to generate a fault diagnostic program for a microprogrammable processor other than the TOSBAC - 5400/150. |
| Starting Page | 213 |
| Ending Page | 221 |
| Page Count | 9 |
| File Format | |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 1973-06-25 |
| Access Restriction | Subscribed |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|