An emerging technology can be classified by the path or degree in which it accomplishes more tasks with fewer or smaller resources than previous technologies.
• A Blu-ray disc player also plays DVDs and CD, making stand-alone DVD/CD players obsolete.
• An all-in-one printer/copier/scanner make separate machines unnecessary.
• A clock on an iPod may make wearing a watch unnecessary.
• A MacBook Air may make a heavier laptop unnecessary.