animation, optical storage, image processing, and sound, is not a single technology, product, or market.
2． MPC stands for "multimedia personal computer".
3． The requirements for an MPC are described in detail in Microsoft's Multimedia PC Specification Version 1.0.
三、Exercises(练习及参考答案):
1．Translate the following words and expressions into English.
(1) 多媒体：multimedia
(2) 图形：graphics
(3) 视频：video
(4) 图像处理：image processing
(5) 动画：animation
(6) 光盘：compact disk
3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:
(1)、(3)、(4)、(7)、(8)
4．Answer the following questions briefly:
(2)、OA
(4)、A byte consist of 8 bits.
(5)、In 1946, the first computer in the world ENIAC was developed.
UNIT ONE Introduction to Computers
Text 7 Compact Disk - Read Only Memory (CD-ROM)
一． Vocabulary(词汇):
digital ：数字的
access ：存取
laser ：激光
reserve ：重新写入
compact disk ：密集盘
optical disk ：(=compact disk)光盘
video player ：影像光盘机
programmed search ：程序搜索
memory facility ：记忆功能
telephone directory ：电话簿
postal address ：邮政地址
二． Important sentences(重点句):
1．New programs and data are 'burnt' onto the disc surface by a powerful laser.
2．To read the information, a weaker laser is passed over the surface and the reflected distortion from the dips forms the data which can be used for 'playback'.
3．There are two types (standards) of optical disks :CD-I and CD-ROM.
三． Exercises(练习及参考答案):
1．Translate the following words and expressions into English.
(1) 激光：laser
(2) 英寸：inch
(3) 只读存储器：ROM (Read Only Memory)
(4) 搜索：search
(5) 记忆：memory
(6) 存取：access
2．Translate the following screen messages into Chinese.
(1)、(2)、(3)、(4)、(5)
3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:
(1)、(3)、(4)、(5)、(8)
4．Answer the following questions briefly::
(1)、What devices are usually used as secondary memory?
Answer: hard disk, floppy disk, optical disk, magnetic tape
(2)、What three categories do computer languages generally fall into?
Answer: machine languages, assembly languages and high-level languages.
(3)、What is the acronym for a double density diskette?
Answer: DD
(4)、How many bytes does a 'word' in the computer consist of ?
Answer: 1,2,4 or more bytes.
UNIT TWO Hardware and Configuration
Text 1 The Central Processing Unit(CPU)
一、Vocabulary(词汇):
manufacturer ：制造商
performance ：性能
megahertz(MHz) ：兆赫
nanoseconds (ns) ：纳秒
overclocking ：超频
warranty ：保修
upgrade ：升级
configuration ：配置，设置
microcomputer ：微型计算机
arithmetic and logic unit (ALU) ：算术/逻辑部件(运算器)
instruction counter ：指令计数器
decoder ：译码器
super-mini-computers ：超级小型机
numerically coded instruction ：数字化编码的指令
high-speed storage ：高速存储器
primary storage ：(=main memory) 主存储器
microprocessor-CPU based systems ：以微处理器为CPU的基本系统
video-arcade game ：电子游戏
digital TV ：数字电视
二． Important sentences(重点句):
1．The operations of a computer system are controlled by the CPU, which contains an arithmetic and logic unit (ALU), an instruction counter and a decoder.
2．The speed at which the CPU operates is called the clock speed and is measured in megahertz(MHz).
3．A clock cycle is the time that the CPU takes to perform instructions at a given clock speed.
4．The CPU can operate at two different clock speeds : an internal speed for operations within the CPU, and an external speed for transferring data into and out of the CPU.
5．Overclocking is a term generally used to describe how you have increased the clock frequency on your board to run your system at a higher speed.
6．Microprocessors have come a long way since 1971 when the first microprocessor, the Intel 4004, was developed.
三． Exercises(练习及参考答案):
1．Translate the following words and expressions into English.
(1) 电子元件：electronic component
(2) 算术逻辑单元：arithmetic and logic unit (ALU)
(3) 硅片：silicon chip
(4) 指令计数器：instruction counter
(5) 时钟速度：clock speed
(6) 译码器：decoder
2．Translate the following screen messages into Chinese.
(1)、(3) 、(4)、(8)
3．Translate the following Windows 95 and DOS7.0 screen messages into Chinese:
(4)、(5) 、(6)、(7)
4．Answer the following questions briefly:
(2) To which generation do the present-day computers belong?
Answer: The fourth generation.
UNIT TWO Hardware and Configuration
Text 2 Memory
一、Vocabulary(词汇):
account ：银行户头
generate ：产生，建立
subscriber ：订户
word ：字
overwrite ：覆盖
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计算机英语(三)
