1數據是未經組織的事實的集合,數據可以包括單詞,數字,圖像和聲音.
2計算機由許多硬件部件構成,這些硬件與軟件一起工作,以便執行計算,組織數據及與其他計算機通信的任務,
3硬件部件包括輸入設備,輸出設備,系統單元 ,存儲設備和通信設備.
4輸入設備讓用戶向計算機存儲器輸入數據和命令
5外存儲器與內存儲器不同,外存儲器能永久保存數據而內存儲器僅臨時保存.
6硬盤能比軟盤提供更大的存儲容量.
7四種常用的外存設備分別是:軟盤驅動器,硬盤驅動器,CD-ROM驅動器和DVD-ROM驅動器.
8中央處理器(CPU)有時也稱處理器,用來解釋并執行基本的計算機操作指令.
9在系統單元中,計算機的存儲器存儲數據,指令和信息
10輸入,處理,輸出,和存儲的這種循環成之為信息處理循環。
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