宿業師山房期丁大不至 / 宿業師山房待丁大不至
電腦(computer)，亦稱計算機。可程式設計式的機器，能夠儲存、提取、處理資料。現今的電腦至少有一箇中央處理器，來進行所有的計算，也包括一個主記憶體、一個控制單位、一個算術邏輯單位。輔助的資料儲存通常由機載的硬碟提供，並由軟碟或光碟等其他媒介輔助。周邊裝置包括輸入裝置（例如鍵盤、滑鼠）和輸出裝置（例如顯示器、印表機），還有連線全部元件的線路及管線。現代電腦的世代以其技術為特徵。第一代電腦大致在第二次世界大戰後發展於美國，使用真空管，體型很大。第二代約在1960年引進，使用電晶體，屬於第一批成功的商業電腦。第三代電腦（1960年代晚期和1970年代）的特徵是元件細微化，而使用積體電路。1974年首度引進微處理器晶片，界定了第四代電腦。第五代強調人工智慧，著重於機器推理和邏輯程式語言。早期機器屬於類比電腦，但如今大部分是數位電腦。在先前五十年中，電腦已經改變人們生活及工作的方式，它們的發展使得資訊時代成為可能。
English version：
computer
Programmable machine that can store,retrieve,and process data. Today's computers have at least one CPU that performs all calculations and includes a main memory,a control unit,and an arithmetic logic unit. Auxiliary data storage is usually provided by an on-board hard disk and may be supplemented by other media such as floppy disks or CD-ROMs. Peripheral equipment includes input devices (e.g. keyboard,mouse) and output devices (e.g. monitor,printer),as well as the circuitry and cabling that connect all the components. Generations of modern computers are characterized by their technology. First-generation computers,developed mostly in the U.S. after World War II,used vacuum tubes and were enormous. The second generation,introduced c. 1960,used transistors and were the first successful commercial computers. Third-generation computers (late 1960s and 1970s) were characterized by miniaturization of components and use of integrated circuits. The microprocessor chip,first introduced in 1974,defines fourth-generation computers. The fifth generation emphasizes artificial intelligence,focusing on machine reasoning and logic programming languages. Early machines were analog computers,but most today are digital computers. In the last 50 years computers have changed the way people live and work,and their development has made the information age possible.