Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
Reviewed in the United States on December 20, 2009
Fast-paced and engaging, Digital Revolutionaries provides readers with an overview of some of the most important players and events in the development of the computer industry. With his background in journalism at some of the world's leading newspapers, author Steve Lohr knows how to grab and maintain the attention of readers, and examples such as computer-animated feature films, ipods, and web pages are sure to appeal to the current generation of young people. The book makes a good non-fiction resource for teaching middle-grade students about the gains to society from technological change and innovation, as well as the personal gains to individuals who are smart and fortunate enough to make such cutting-edge contributions.
This is an informational book with one glaring error of omission. The author neglected to include the first desktop computer built in this country. Olivetti was building the Programma 101 in 1966, in Harrisburg PA.