计算机专业英语

Tom:Why is it so slow? How much RAM do you have? Jerry:I think I have 128 Megs.

Tom:That’s your problem.If you want Windows 7 to run smoothly, you need at least 256 Megs. Jerry:I have 512 Megs now. and most things work better, but I can't get my mouse to work properly. First it moves and then, all of a sudden, it jerks all the way across the screen. What can I do?

Tom:Here, let me see. You should open the mouse and take out the ball.Do you see these contacts here?

Jerry:Yes, they look pretty dirty.

Tom: That's right. Let me clean those for you, and you'll be back to normal in no time. Jerry: Wow, you are so professional.Thank you. Tom:It’s my pleasure.

TASK II TEXT A

The Organization of Computer System Unit

Figure 2.1 The Organization of Computer Components

A computer is a programmable machine designed to or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem. A general-purpose computer has four main memory, and the input and output devices. These parts are

sequentially[si5kwZnFEli] adj. sequentially and automatically carry out a sequence of arithmetic 从而，循序地

readily[5redili] adv. 容易地，乐意地

component[kEm5pEunEnt] n. components: the arithmetic logic unit (ALU), the control unit, the 部件，组件 · 18·