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Discovery: User Manual of the Oldest Surviving Computer in the World
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).

Technology in the Time of Cataclysms
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?

The World's Largest Commercial Cylindrical Slide Rule has a Scale Length of 24m
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.

Hacking the Axis
From BLOG@CACM

Hacking the Axis

The role of early high-performance computing capabilities in World War II.

Would There Be Computers Without Easter?
From BLOG@CACM

Would There Be Computers Without Easter?

Finding roots of computing in the computation of Easter.

Why Is There No Well-Known Swiss IT Industry?
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.

Are My Requirements Complete?
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.

Dynamic Analysis in the Browser
From BLOG@CACM

Dynamic Analysis in the Browser

Autopsy of a Google Query.

Soundness and Completeness: With Precision
From BLOG@CACM

Soundness and Completeness: With Precision

The two key properties of program analysis are dual of each other.

An Agile Approach to Learning Programming
From BLOG@CACM

An Agile Approach to Learning Programming

The Super Simple Programming Book is one example to teach programming in an Agile way. In general, Agile concepts can lead to highly effective learning.

Calculating With Roman Numerals is Not So Difficult
From BLOG@CACM

Calculating With Roman Numerals is Not So Difficult

How to deal with Roman numerals and without a sign for zero in an additive number system, if no hand abacus is available?

More Replicas of Historical Calculating Machines Found
From BLOG@CACM

More Replicas of Historical Calculating Machines Found

Documenting the discovery of several previously unknown replicas of historical computing devices made by Roberto A. Guatelli.

The Model Maker of Leonardo da Vinci, Blaise Pascal, and Charles Babbage
From BLOG@CACM

The Model Maker of Leonardo da Vinci, Blaise Pascal, and Charles Babbage

Discovery of a previously unknown replica of the legendary Swiss Millionaire calculating machine at Carnegie Mellon University in Pittsburgh, PA.

What Turing and Church Left Out
From BLOG@CACM

What Turing and Church Left Out

Concurrency control for readers and writers in a database is a classic problem that illustrates the power of message passing.

Did Albert Einstein Calculate on the 'Millionaire' in Zurich?
From BLOG@CACM

Did Albert Einstein Calculate on the 'Millionaire' in Zurich?

In 1897, ETH Zurich was the first university in the world to have a copy of the legendary four-species calculating machine Millionaire.

Validating Beneficial AI
From BLOG@CACM

Validating Beneficial AI

The foundational work of the first AI for Good Summit allows the AI community to work together to create an infrastructure for responsible communication, development...

Articulation of Decision Responsibility
From BLOG@CACM

Articulation of Decision Responsibility

Can we establish a locution for the results of a program that does not ascribe decision-making power?

Securing Threats to Election Systems
From BLOG@CACM

Securing Threats to Election Systems

Election systems are supposed to be disconnected from the Internet, for obvious and sensible reasons. Most elections today, however, use computers.

Time To End The vi/Emacs Debate
From BLOG@CACM

Time To End The vi/Emacs Debate

If you still use Emacs, I feel for you. Perhaps it is time to give vi a try.

A Computing Education Research Perspective on Programmable Programming Languages
From BLOG@CACM

A Computing Education Research Perspective on Programmable Programming Languages

Computing education researcher take on the implications of programmable programming languages
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