In this usage, the term means difficult to guess. An encryption algorithm is intended to be unbreakable (in which case it is as strong as it can ever be), but might be breakable (in which case it is as weak as it can ever be) so there is not, in principle, a continuum of strength as the idiom would seem to imply: Algorithm A is stronger than Algorithm B which is stronger than Algorithm C, and so on.
Smart Clothing is made from fabrics that are wireless and washable that integrate computing fibers and materials into the integrity of the fabrics. Georgia Tech is one university among several, which include MIT and University of California at Davis, that conduct research in the area of intelligent fabric.
New Models. Used Models. The concept of the Smart car emerged in the early 1990s when the Swiss company Swatch, best known for its kitschy watches, sought to build an affordable city car that would fit into the smallest of parking spots and go easy on fuel. Not too long after, the company paired up with Mercedes-Benz to make the idea a reality. The car was later christened Smart, an acronym for Swatch Mercedes Art. The Smart Fortwo, originally dubbed the City Coupe, debuted at the 1997 Frankfurt Auto Show.