IT职业英语 高巍巍 Unit1 First Day At Work 1 1 reading新.pptVIP

IT职业英语 Unit1 First Day at Work Section 1 Reading Introduction to Computer Components Contents Vocabulary What is a computer? The computer, also called a processor, is a electronic device that can interpret and execute programmed, commands for input, output, computation, and logic operations. Key elements in a computer system CPU Central Processing Unit—中央处理器 three main sections: control unit Arithmetic and Logic Unit (ALU) memory section Storage Temporary Random-Access Memory(RAM) permanent floppy disks hard disks CDs DVDs Tapes flash drives input Data can be entered to a computer system for processing (input) via input device. keyboard (for keyed input) microphone (for voice and sound input) point-and-draw device: mouse typical input device : joy-stick, digital camera and scanner output Output device convert output results from the CPU into a form that can be used by people. monitor video display audio speakers printer Exercise 1 True or false 1. ( ) Key elements in a computer system include memory, input devices, and output devices. 2. ( ) Keyboards, mice, input pens, and printers are input devices. 3. ( ) The input/output devices are also called peripheral devices. 4. ( ) CPU can be called the key element of a computer. 5. ( ) The control section can be found in the CPU of a typical PC. Click to edit company slogan . * What is a computer? 1 Key elements in a computer system 2 1. processor n.处理机 2. elements n.元素 3. memory n.内存 4. input devices n.输入设备 5. output devices n.输出设备 6. storage n.存储，存储器 7. peripherals n.外围设备 8. kernel n.内核，核心 9. Central Processing Unit(CPU) n.中央处理器 10. Arithmetic and Logic Unit(ALU) n.算术逻辑单元 11. Random-Access Memory(RAM) n.随机存取存储器 12. chip n.芯片 13. floppy n.软盘 14. hard disks n.硬盘 15. flash drives n.闪存盘 16. joy-stick n.操纵杆 17. scanner n.扫描仪 18. monitor n.显示器 computer system Key elements CPU memory input devices output devices 中央处理器 内 存 输入设备 输出设备 storage 存储设备 *