February 1987 - Vol. 30 No. 2
Features
Computer system reliability and nuclear war
Given the devastating consequences of nuclear war, it is appropriate to look at current and planned uses of computers in nuclear weapons command and control systems, and…
The ACM SIGOPS Workshop on Accommodating Heterogeneity was conducted in December 1985 in Eastbound, Wash., as a forum for an international group of fifty researchers to…
COBOL on a PC: a new perspective on a language and its performance
A comparison of Cobol performance on the PC AT Enhanced versus an IBM 370 mainframe suggests that high-quality PC compiler implementations—combined with the new…
An improved parallel thinning algorithm
An iterative thinning algorithm reduces a two-dimensional pattern of strokes to its skeleton by removing layers of edge elements until each stroke has unit thickness. A…
Systolic algorithms to examine all pairs of elements
Four methods to solve the all pairs examination problem are presented. The first two methods are based on the fold-over scheme. The remaining two methods are adopted from…