Computers\xa0can make our jobs become easier . They can be used for communicational purposes (internet), to store and calculate data and to write up massive documents multiple times while only needing to write it up once. Others use\xa0computers\xa0for entertainment value; to play games, watch movies and play music etc.\xa0The\xa0brain\xa0uses chemicals to transmit information; the\xa0computer\xa0uses electricity. Even though electrical signals travel at high speeds in the nervous system, they travel even faster through the wires in a\xa0computer. A\xa0computer\xa0uses switches that are either on or off (“binary”).