Word sequence puzzles constitute fascinating (and fun) experiments in associative thinking—that is, experiments in how we make semantic, conceptual, or formal connections among the words in a set.

In a computer, the entire memory can be separated into different levels based on access time and capacity. Figure 1 shows different levels in the memory hierarchy. Smaller and faster memories are kept ...

An associative array is an array which uses strings as indices instead of integers. To see how associative arrays work, we’re going to look at both the Korn shell and Perl, though only the newest ...