●What is an Operating System? The most important program on any computer is the Operating

　　System or OS. The OS is a large program made up of many smaller programs that control how the

　　CPU communicates with other hardware components. It also makes computers easier to operate

　　by people who don't understand programming languages. In other words, operating systems make

　　computers user friendly. The operating system also contains other programs that are important, but

　　not essential to making the computer run. The part of the operating system that contains these

　　programs is stored on a computer's hard drive and is booted to RAM whenever the computer is

　　turned on. This part of the operating system is known as DOS which stands for Disk-based

　　Operating System.

　　(71)A)apllication B) program C) platform D)device

　　(72)A)controls B) alternates C) communicates D) stakeout

　　(73)A) stored B)running C)hanging D)stacked

　　(74)A) ROM B) RAM C) hard disk D) cache

　　(75)A) kernel B) CPU C)BIOS D) DOS

　　下午試題

　　試題一

　　閱讀以下說明和流程圖，回答問題1 至問題4，將解答寫在答卷的對應欄內。