(1)外围(Peripheral)设备是人机交流的桥梁。、
(2)计算机分成三部分: 输入设备、输出设备和中央处理器。
(3)CPU的功能是接受指令和处理数据。
(4)屏幕上的符号反映了人机对话(man-machine dialog)的内容。
(5)计算机的I/O设备包括键盘、鼠标、绘图仪(plotter)、打印机、软盘和硬盘
(1)Computers can be divided into two categories: analog computers and digital computers.
(2)The larger is the computer size, the more things it can do.
(3)Science and technology are the power of computer development.
(4)Integrated circuit signed the third generation of computers coming out.
(5)Computer’s mode can be reformed too.
(1)component
(2)arithmetic-logic section
(3)keyboard
(4)machine-code form
(5)printer
(6)monitor
(7)instruction decoder
(8)a series of instructions
(9)operand
(10)opcode
(1)屏幕
(2)光标
(3)文件
(4)磁盘
(5)驱动器
(6)拷贝
(7)写保护
(8)磁盘格式化
(9)输入命令
(10)数据将丢失
....