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Wean Hall, home of the world's first internet-enabled soda vending machine. [ 27 ] In the 1990s and into the 2000s, Carnegie Mellon solidified its status among American universities, consistently ranking in the top 25 in the national U.S. News & World Report rankings, and in the top 30 (ranking 28th in 2022) amongst universities worldwide.
The dodo was variously declared a small ostrich, a rail, an albatross, or a vulture, by early scientists. [3] In 1842, Danish zoologist Johannes Theodor Reinhardt proposed that dodos were ground pigeons, based on studies of a dodo skull he had discovered in the collection of the Natural History Museum of Denmark.
An example of a physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering. Computer security (also cybersecurity, digital security, or information technology (IT) security) is the protection of computer software, systems and networks from threats that can lead to unauthorized information disclosure, theft or damage to hardware, software, or data ...