AFIPS '69 (Spring)最新文献

筛选
英文 中文
Computers in service to libraries of the future: library requirements 为未来图书馆服务的计算机:图书馆需求
AFIPS '69 (Spring) Pub Date : 1969-05-14 DOI: 10.1145/1476793.1476809
W. N. Locke
{"title":"Computers in service to libraries of the future: library requirements","authors":"W. N. Locke","doi":"10.1145/1476793.1476809","DOIUrl":"https://doi.org/10.1145/1476793.1476809","url":null,"abstract":"An outstanding computer engineer recently compared libraries to the whaling industry, a relic of the romantic past. As whales disappeared, so will books, he said. We should stop building libraries, store all information on tape and retrieve it through consoles.","PeriodicalId":326625,"journal":{"name":"AFIPS '69 (Spring)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121032295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Computer generated graphic segments in a raster display 计算机在光栅显示器中生成图形段
AFIPS '69 (Spring) Pub Date : 1969-05-14 DOI: 10.1145/1476793.1476824
R. A. Metzger
{"title":"Computer generated graphic segments in a raster display","authors":"R. A. Metzger","doi":"10.1145/1476793.1476824","DOIUrl":"https://doi.org/10.1145/1476793.1476824","url":null,"abstract":"The increased use of computer graphics to enhance the man-machine interface has resulted in many and varied systems and devices to meet a multitude of needs. One type of display that is receiving new emphasis as a computer output device is the \"raster format\" display (of which standard television is a particular type). Among the reasons for using this type of display are: (1) the relative simplicity of the display device, (2) the ease of remote operation for multiple station users, (3) the low cost per station, (4) capability for mixing output with standard television sources, and (5) good position repeatability for computer generated data.","PeriodicalId":326625,"journal":{"name":"AFIPS '69 (Spring)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127170363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
Generating parsers for BNF grammars 为BNF语法生成解析器
AFIPS '69 (Spring) Pub Date : 1969-05-14 DOI: 10.1145/1476793.1476928
F. DeRemer
{"title":"Generating parsers for BNF grammars","authors":"F. DeRemer","doi":"10.1145/1476793.1476928","DOIUrl":"https://doi.org/10.1145/1476793.1476928","url":null,"abstract":"The procedure described herein is in essence an extension, albeit a simplification, of the work Earley which in turn was based on Evans, Feldman, Floyd, and Standish. For a large subset of grammars, the procedure maps the Backus Naur Form (BNF) definition of the grammar of a language into a deterministic, left-to-right parser for the sentences in that language. It is shown below that the procedure by design, covers all bounded right context grammars and, as a by-product, some LR(k) grammars which are not bounded right context. See Knuth for the definitions of these classes of grammars. If two parameters are incorporated a priori into the procedure, one limiting the look-back and the other limiting the look-ahead capabilities of the parser to be generated, an algorithm results. For each BNF grammar G the algorithm either rejects G as not bounded right context for the specified limits or it generates a parser for G.","PeriodicalId":326625,"journal":{"name":"AFIPS '69 (Spring)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125893327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Automatic traffic signal control systems: the metropolitan Toronto experience 自动交通信号控制系统:多伦多大都会体验
AFIPS '69 (Spring) Pub Date : 1969-05-14 DOI: 10.1145/1476793.1476872
J. D. Hodges, D. Whitehead
{"title":"Automatic traffic signal control systems: the metropolitan Toronto experience","authors":"J. D. Hodges, D. Whitehead","doi":"10.1145/1476793.1476872","DOIUrl":"https://doi.org/10.1145/1476793.1476872","url":null,"abstract":"Like a number of fast growing North American cities, Metropolitan Toronto is faced with the ever increasing problems of greater motor vehicle traffic volume, congestion and accidents. Metropolitan Toronto today has more than 700,000 vehicles registered in its 240 square miles, for a per capita density that rates behind only Los Angeles. In addition over 100,000 vehicles from outside the area converge daily on the City.","PeriodicalId":326625,"journal":{"name":"AFIPS '69 (Spring)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114499347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An analytic model of multiprogrammed computing 多程序计算的解析模型
AFIPS '69 (Spring) Pub Date : 1969-05-14 DOI: 10.1145/1476793.1476914
R. Fenichel, A. Grossman
{"title":"An analytic model of multiprogrammed computing","authors":"R. Fenichel, A. Grossman","doi":"10.1145/1476793.1476914","DOIUrl":"https://doi.org/10.1145/1476793.1476914","url":null,"abstract":"The work described in this paper was undertaken in order to provide estimates of the throughput capacity of certain multiprogrammed computer systems. In particular, we consider those systems whose users are never simultaneously receiving input-output and central processor attention. Systems making use of \"demand paging\" tend to fall within this class.","PeriodicalId":326625,"journal":{"name":"AFIPS '69 (Spring)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116508684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
POGO: programmer-oriented graphics operation POGO:面向程序员的图形操作
AFIPS '69 (Spring) Pub Date : 1969-05-14 DOI: 10.1145/1476793.1476842
B. Boehm, V. Lamb, R. Mobley, J. E. Rieber
{"title":"POGO: programmer-oriented graphics operation","authors":"B. Boehm, V. Lamb, R. Mobley, J. E. Rieber","doi":"10.1145/1476793.1476842","DOIUrl":"https://doi.org/10.1145/1476793.1476842","url":null,"abstract":"Wide-scale application of interactive computer graphics (ICG) is currently inhibited by two major difficulties:\u0000 1. Terminal time costs too much.\u0000 2. It takes too much effort and expertise to develop and modify ICG programs.","PeriodicalId":326625,"journal":{"name":"AFIPS '69 (Spring)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131587752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Computers in service to libraries of the future 为未来图书馆服务的计算机
AFIPS '69 (Spring) Pub Date : 1969-05-14 DOI: 10.1145/1476793.1476811
Howard W. Dillon
{"title":"Computers in service to libraries of the future","authors":"Howard W. Dillon","doi":"10.1145/1476793.1476811","DOIUrl":"https://doi.org/10.1145/1476793.1476811","url":null,"abstract":"Automation activities in libraries have been undertaken with accelerating frequency over the past ten years. It is no longer uncommon to find successful projects in almost every type and size of library throughout the country. Libraries have demonstrated that they can develop and operate ordering and processing systems to control financial and bibliographic information at the time a new item is added to the collection. Book catalogs and other holdings lists are produced and distributed in many formats. Automated circulation control systems, particularly the data collection type, are widely accepted and functioning successfully.","PeriodicalId":326625,"journal":{"name":"AFIPS '69 (Spring)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130967285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Computers and the underprivileged 电脑和弱势群体
AFIPS '69 (Spring) Pub Date : 1969-05-14 DOI: 10.1145/1476793.1476806
Allen L. Morton
{"title":"Computers and the underprivileged","authors":"Allen L. Morton","doi":"10.1145/1476793.1476806","DOIUrl":"https://doi.org/10.1145/1476793.1476806","url":null,"abstract":"The Computer Personnel Development Association, Inc. (CPDA) is an organization that has been set up to secure openings in the computer field for individuals from ghetto areas. To prepare these people for work in a business environment, CPDA will provide orientation and training courses in data processing. The program is organized by professionals within the computer industry in collaboration with local community development groups who will help select participants for the program, and with industrial leaders who will locate and provide job opportunities for the participants.","PeriodicalId":326625,"journal":{"name":"AFIPS '69 (Spring)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129422279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Software measurements and their influence upon machine language design 软件测量及其对机器语言设计的影响
AFIPS '69 (Spring) Pub Date : 1969-05-14 DOI: 10.1145/1476793.1476916
Leon Presser, M. Melkanoff
{"title":"Software measurements and their influence upon machine language design","authors":"Leon Presser, M. Melkanoff","doi":"10.1145/1476793.1476916","DOIUrl":"https://doi.org/10.1145/1476793.1476916","url":null,"abstract":"At present, software development is responsible for a large part of the total cost of computer systems. A segment of this cost is traceable to the development of programming language (e.g., FORTRAN, ALGOL, PL/I) translators which constitute major components of any software package.","PeriodicalId":326625,"journal":{"name":"AFIPS '69 (Spring)","volume":"81 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129847302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Program transferability 程序可转移性
AFIPS '69 (Spring) Pub Date : 1969-05-14 DOI: 10.1145/1476793.1476887
J. Ward
{"title":"Program transferability","authors":"J. Ward","doi":"10.1145/1476793.1476887","DOIUrl":"https://doi.org/10.1145/1476793.1476887","url":null,"abstract":"During the early development of higher order languages in 1959, we were told that programs written in such languages could be run on almost any computer. Now, ten years later, we find that programs so written not only are non-transferable from one manufacturer's computer to that of another, but, in some instances, cannot be run on two computers of the same make and model with memories of different sizes. In the intervening years, computers have become much faster and the cost per operation has become much cheaper, while the cost of programming has become relatively far more expensive. Still, we do not have program transferability and millions of dollars are spent each year on the uninspiring task of reprogramming routines on additional computers.","PeriodicalId":326625,"journal":{"name":"AFIPS '69 (Spring)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1969-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132381276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信