Communications of the ACM
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Tech Meetups In A Pandemic
By 2019, I generally thought there wasn't much that could surprise me about organizing meetups. Then Covid-19 hit. I was so wrong…
From BLOG@CACM
How Does One Divide with Napier's Rods?
Napier's multiplication and division rods, deriving from the basic multiplication table, simplify calculations considerably.
From BLOG@CACM
How Does One Multiply with Napier's Rods?
Napier's multiplication and division rods, deriving from the basic multiplication table, simplify calculations considerably.
From BLOG@CACM
The Evolution of Computing Power in Switzerland
Milestones in the history of computing from the Swiss National Supercomputing Center, Lugano.
From BLOG@CACM
New Areas for Application of Self-Organizing Routing
To organize the productive work of multiprocessor chips, it is necessary to establish an efficient distribution of computational processes between computational...
From BLOG@CACM
The Art Of Speedy Systems Conversions
System conversions represent a type of development in which project scope includes all the effort of an initial software release, plus an entirely new set of complexities...
From BLOG@CACM
The World's Most Magnificent Historical Calculating Machines
The design of today's electronic computers is usually not very appealing, in contrast to magnificent mechanical calculating machines from earlier times.
From BLOG@CACM
The World's Most Magnificent Historical Automatons
Automatons are ubiquitous. Some of the most magnificent works in the genre have survived in museums.
From BLOG@CACM
Computer Systems Research: The Joys, the Perils, and How to Count Beans Well
This post is meant to highlight my subjective take on the joys and the road bumps on the way to doing innovative work in computer systems.
From BLOG@CACM
Birthday Bit Boundaries
Which birthdays would have special significance if our culture were binary-based instead of decimal-based?
From BLOG@CACM
How Do You Calculate on the Abacus?
Considering the use of one of the most long-lived calculating devices.
From BLOG@CACM
Discovery: User Manual of the Oldest Surviving Computer in the World
A rare find: the user manual of the oldest surviving computer in the world, the Zuse Z4 relay machine (1945).
From BLOG@CACM
Technology in the Time of Cataclysms
How is the development of technology, and its more basic cousin science, affected during such cataclysmic times?
From BLOG@CACM
The World's Largest Commercial Cylindrical Slide Rule has a Scale Length of 24m
The world's largest mass-produced cylindrical slide rules come from Loga-Calculator AG in Zurich/Uster, Switzerland.
From BLOG@CACM
Hacking the Axis
The role of early high-performance computing capabilities in World War II.
From BLOG@CACM
Would There Be Computers Without Easter?
Finding roots of computing in the computation of Easter.
From BLOG@CACM
Why Is There No Well-Known Swiss IT Industry?
Herbert Bruderer asks why no information technology industry emerged in Switzerland in the 1950s, despite the appearance of computers from several sources.
From BLOG@CACM
Are My Requirements Complete?
Knowing the notion of sufficient completeness and the theory of abstract data types helps practitioners produce better requirements.
From BLOG@CACM
Soundness and Completeness: With Precision
The two key properties of program analysis are dual of each other.
From BLOG@CACM