1數(shù)據(jù)是未經(jīng)組織的事實(shí)的集合,數(shù)據(jù)可以包括單詞,數(shù)字,圖像和聲音.

2計(jì)算機(jī)由許多硬件部件構(gòu)成,這些硬件與軟件一起工作,以便執(zhí)行計(jì)算,組織數(shù)據(jù)及與其他計(jì)算機(jī)通信的任務(wù),

3硬件部件包括輸入設(shè)備,輸出設(shè)備,系統(tǒng)單元 ,存儲(chǔ)設(shè)備和通信設(shè)備.

4輸入設(shè)備讓用戶向計(jì)算機(jī)存儲(chǔ)器輸入數(shù)據(jù)和命令

5外存儲(chǔ)器與內(nèi)存儲(chǔ)器不同,外存儲(chǔ)器能永久保存數(shù)據(jù)而內(nèi)存儲(chǔ)器僅臨時(shí)保存.

6硬盤(pán)能比軟盤(pán)提供更大的存儲(chǔ)容量.

7四種常用的外存設(shè)備分別是:軟盤(pán)驅(qū)動(dòng)器,硬盤(pán)驅(qū)動(dòng)器,CD-ROM驅(qū)動(dòng)器和DVD-ROM驅(qū)動(dòng)器.

8中央處理器(CPU)有時(shí)也稱(chēng)處理器,用來(lái)解釋并執(zhí)行基本的計(jì)算機(jī)操作指令.

9在系統(tǒng)單元中，計(jì)算機(jī)的存儲(chǔ)器存儲(chǔ)數(shù)據(jù),指令和信息

10輸入，處理，輸出，和存儲(chǔ)的這種循環(huán)成之為信息處理循環(huán)。

1 Data is a collection of un-organized facts, which can include words, numbers, images, and sounds.

2 A computer consists of a variety of hardware components that work together with software to perform calculations, organize data, and communicate with other computer.

3 These hardware components include input devices, output devices, a system unit, storage devices, and communications devices.

4 An input device allows a user to enter data and commands into the memory of a computer.

5 Storage differs from memory ,which can hold these items permanently，whereas memory holds these memory holds items only temporarily。

6 A hard disk provides much greater storage capacity than a floppy disk.

7 Four common storage devices are a floppy disk drive, a hard disk drive, a CD- ROM drive, and a DVD-ROM drive.

8 The central processing unit (CPU), sometimes referred to as the processor, interpretsand carries out the basic instructions that operate a computer.

9 In the system unit, a computer’s memory store

s data, instructions, and information.

10 This cycle of input, process, output, and storage is called the information processing cycle

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