One who exhibits or demonstrates a complete absence of intelligence or usefulness, and who would probably be best utilized by being dropped to the bottom of some body of water to hold a boat in place.
1. Any large electronic device that has become outdated, and thus is much larger and heavier than modern versions. A small (usually handheld) such device is called a brick.
2. In ham radio, a piece of radio equipment meeting the criteria in definition 1.
A large, heavy piece ofobsoletetechnology, usually a computer system or computer server, that has served its useful life and cannot be re-used in any cost-effective way. In other words, junk.
My company just upgraded their data center. You interested in any of these old IBM boat anchors?