Communications of the ACM articles from January 1990

Communications of the ACM archives from January 1990

High performance computing. (President's letter.)
January 1, 1990... HIGH PERFORMANCE COMPUTING Congress is currently considering legislation which could have tremendous positive effects on computing professionals, the computer industry, and the public at large. This legislation is the National High...

News track.
January 1, 1990... NEWS TRACK POWER PLAY...This new decade will see the U.S. lose thousands of jobs in computing and telemarketing to low-wage workers in developing nations, according to Joseph Pelton, director of the Advanced Telecommunications Research Center...

Commentary: human error and the design of computer systems. (Viewpoint.) (column)
January 1, 1990... COMMENTARY: HUMAN ERROR AND THE DESIGN OF COMPUTER SYSTEMS In 1988, the Soviet Union's Phobos 1 satellite was lost on its way to Mars. Why? According to Science magazine, "not long after the launch, a ground controller omitted a single letter...

Human error and the search for blame. (editorial)
January 1, 1990... HUMAN ERROR AND THE SEARCH FOR BLAME The ACM RISKS Forum, moderated by Peter Neumann of SRI International, is an electronic dialog among a community of network users concerned about risks to the public in computer systems. A frequent...

Generalized predictive TCQ of speech. (trellis coded quantization in noise-feedback coding structure) (technical)
January 1, 1990... Generalized Predictive TCQ of Speech In recent years there has been tremendous interest in digital communication and data storage systems. Everyday examples of such systems are the long distance telephone network and the compact disk player....

Bounding delay on a multifarious token ring network. (design issues in implementing document retrieval system on token-ring LAN) (technical)
January 1, 1990... Bounding Delay on a Multifarious Token Ring Network The interest in local area network (LANs) is primarily motivated by two reasons. The first is to connect together a collection of computers, terminals, and peripherals located in the same or...

Multicast tree construction in bus-based networks. (technical)
January 1, 1990... Multicast Tree Construction in Bus-Based Networks In recent years, there has been an increase in the number of group-based applications composed of cooperative processing entities. Examples of such applications include multimedia...

Cube structures for multiprocessors. (relationship between hypercube and multistage interconnection networks) (technical)
January 1, 1990... Cube Structures For Multiprocessors Several architectures have been proposed for closely coupled multiprocessing applications, based on two main types of processor interconnections: multistage networks of the shuffle-exchange type [4, 5] and...

An incremental constraint solver. (DeltaBlue algorithm) (technical)
January 1, 1990... An Incremental Constraint Solver A constraint describes a relation that should be satisfied. Examples of constraints include: * a constraint that a line on a computer display be vertical * a constraint that a resistor in a circuit...

New and improved computing practices. (programming methodology) (editorial)
January 1, 1990... New and Improved Computing Practices In the February 1989 issue of Communications of the ACM, Peter Denning discussed "New Directions for the Communications." His editorial suggested a substantial change to all sections, but from my...

DATAPLEX: an access to heterogeneous distributed databases.
January 1, 1990... DATAPLEX: An Access to Heterogeneous Distributed Databases In a typical data-management environment of the manufacturing industry, there are a number of engineering, manufacturing, and business data centers run by various geographically...

Phoenix: a safe-in-memory file system. (time-stamped versions of file system allow for reserve memory) (technical)
January 1, 1990... Phoenix: A Safe In-Memory File System Safe and continuous processing is an attractive potential of computers but is difficult to realize in a way that is cost effective in equipment, computation time, and storage overhead. The ideal is an...

Two fast implementations of the "minimal standard" random number generator. (generating random numbers on 32-bit computers) (technical)
January 1, 1990... Two Fast Implementations of the "Minimal Standard" Random Number Generator Park and Miller [2] described a number of portable high-level language implementations called the "Minimal Standard" random number generator. These implementations are...

ACM news.
January 1, 1990... acm news CSC '90 TO ADDRESS CHALLENGES TO COMPUTING RESEARCH In an era when many other federally backed programs are facing budget cuts, the Bush Administration is calling for massive increases in funding for...

Chapters news.
January 1, 1990... chapters news STUDENT CHAPTERS GEAR UP FOR CSC '90 The Student Chapters Committee has planned several special student events for CSC '90, which will be held in Washington, D.C., February 19-22. A student chapter...

General news. (net links schools and industry to supercomputers)
January 1, 1990... general news NET LINKS SCHOOLS AND INDUSTRY TO SUPERCOMPUTERS A new network linking southern California universities and high-technology firms will provide supercomputer access to a number of smaller institutions...

Calendar of events.
January 1, 1990... Calendar of events ACM's calendary policy is to list open computer science meeting that are held on a not-for-profit basis. Not included in the calendar are educational seminars, institutes, and courses. Submittals should be substantiated...

Calls for papers.
January 1, 1990... calls for papers January 9 Human Factors in Computing Systems 1990 (CHI 90), Seattle, Wash., April 1-5. Submit interactive posters, videos, demonstrations, and exhibits to Toni MacHaffie, P.O. Box 5847, Beaverton, OR 97006; (503)...