计算机应用基础- 第1章 计算机基础 "1. (单选题)CPU的主要组成:运算器和( ) " " A.控制器 " " B.存储器 " " C.寄存器 " " D.编辑器 " "选A " "2. (单选题)第一台电子计算机是1946年在美国研制的,其英文缩写名是(" ")。 " " A.EDSAC " " B.EDVAC " " C.ENIAC " " D.MARK- " "选C " "3. (单选题)计算机中存储单元最小计量单位是( ) " " A.Byte " " B.bit " " C.word " " D.KB " "选B " "4. (单选题)小写字母"a"的ASCII码值是 ( ) " " A.97H " " B.61H " " C.41H " " D.30H " "选B " "5. (单选题)冯.诺依曼型计算机的设计思想是( ) " " A.把程序放在硬盘中 " " B.事先编写好程序 " " C.程序预先放在内存中逐条执行 " " D.由控制器完成执行 " "选C " "6. (单选题)下列不属于微机主要性能指标的是( ) " " A.字长 " " B.内存容量 " "