The predecessor of the toothbrush, the chew stick, first appeared in Egypt and Babylonia, and the earliest bristle toothbrush, the direct predecessor to the modern toothbrush, originated in China.he bristle toothbrush spread to Europe, brought back from China to Europe by travellers. It was adopted in Europe during the 17th century. The earliest identified use of the word toothbrush in English was in the autobiography of Anthony Wood, who wrote in 1690 that he had bought a toothbrush from J. Barret.
Usually, when you want to connect an external hard drive to your computer, you just plug it in and that's it. However, if you are using a Macbook Pro or any Mac computer, the hard drive must be pre-formatted as MAC OS Extended/ FAT32.
Every computer contains one, if not two, hard drives. There are internal and external hard drives. The internal hard drive is located inside the system unit, and the external hard drive is connected to the computer for extra storage.