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(单词翻译:双击或拖选)
If you’re like most people, computers are becoming a part of your life, and it helps to know how they work. They seem complicated1 inside. But by understanding just a few parts, you can see a simpler side of computers.
You’ve seen them. They come in all shapes and sizes, but work pretty much in the same ways. In fact, if you could look inside these computers, they’d have the same basic parts. It’s these parts, the hardware, that do a lot of the work in computers.
To explain, let’s look at something you already know: a house. One of the great things about living in a house is that you have room for all of your stuff3. In fact, many houses have basements that become the perfect place for storing things you want to use later. And the bigger the basement, the more you can store. The same thing is true for computers. Instead of boxes and bicycles, we need a place to store things like photos, music, documents and software. In a computer, it’s not the basement but a hard drive. A computer’s hard drive is where you keep all the things you want to use later, and like basements, the bigger the hard drive, the more you can store.
The basements aren’t perfect. Going to the basement takes too much time whenever you need something. Closets on the main floor can help. They’re small and make things easier to access when you need them. You don’t need to go all the way downstairs. It’s the same with computers. Some of the information stored on computers is hard for the computer to open quickly because it needs to take the long way. To solve this problem, computers use RAM4 or Random5 Access Memory. It makes information easier for the computer to access. This means RAM makes computers faster. Plus, this kind of closet gets cleaned out every time you restart6 your computer.
Of course, houses have all kinds of parts that need to work together. It will help to have someone like a butler in the house, making sure the house is always in working order. If it’s too hot, maybe the air conditioning needs adjustment; when it’s dark, lights are needed. Computers need this too. Something has to make sure all the parts run smoothly7. In computers, this is called the processor. It’s a tiny part that’s like the butler of the computer. It sends and receives information, completes tasks and puts the software to work. And the faster it can complete tasks, the faster your computer will be.
So, let’s review. The hard drive is like a basement. It stores all the things you need for later. RAM is like a closet on the main floor. It makes some information quick and easy to access. And the processor is like having a butler around, always completing tasks and making things work together.
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1 complicated | |
adj.错综复杂的,麻烦的,结构复杂的 | |
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2 hardware | |
n.重型武器;五金器具;硬件 | |
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3 stuff | |
n.原料,材料,东西;vt.填满;吃饱 | |
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4 ram | |
(random access memory)随机存取存储器 | |
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5 random | |
adj.随机的;任意的;n.偶然的(或随便的)行动 | |
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6 restart | |
vt.重新开始,重新启动;vi.重新开始,重新启动 | |
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7 smoothly | |
adv.平滑地,顺利地,流利地,流畅地 | |
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8 hood | |
n.头巾,兜帽,覆盖;v.罩上,以头巾覆盖 | |
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