Communications of the ACM
The opinion archive provides access to past opinion stories from Communications of the ACM and other sources by date.
April 2008
There are no archived opinion articles for this time period.
Original Roman Pocket Calculators are Extremely Rare
12.01.2021As far as we know, only three or four original specimens of the Roman hand abacus have survived.
Experiencing Loops in Time
11.28.2021We don't experience program loops as blocks, started over, because time is one-way.
