USB Type-A. Known as your standard-A, a USB Type-A is the first original design for a USB port that has a flat and rectangular shape. It is mainly used to connect and control other USB devices such as saving data on external storage devices and using a mouse and keyboard.
Cretaceous Period. The Cretaceous period began at the end of the Jurassic period approximately 144 million years ago and extended longer than any period (79 ma) to approximately 65 million years ago. The word Cretaceous comes from the word for chalk and the geological remains do indeed contain heightened chalk deposits.
geologic time mesozoic era triassic period jurassic period cretaceous period the mesozoic era is the age of the dinosaurs and lasted almost 180 million years from approximately 250 to 65 million years ago this era includes 3 well known periods called the triassic jurassic and cretaceous periods a mass extinction marked the beginning and end of the mesozoic era the event that caused the transition from the paleozoic era to the mesozoic era was the greatest extinction this earth has seen