专业英语第2次作业

计算机专业英语第2次作业第二次作业 1.E-mail is an electronic system for sending and receiving messages and files over

计算机专业英语第2次作业 第二次作业 1.E-mail is an electronic system for sending and receiving messages and files over acomputer network. 正确 2.E-mail is protected by copyright law. 正确 3.Input hardware consists of external devices―that is, components 正确 .An optical scanner uses light-sensing equipment to convert images 正确 5.An operating system (OS) is the basic software 正确 6.图形化用户界面的英文术语是 D A： BIOS B： WINDO WS C： DOS D: