Period2-3 Pre-reading & Reading
Pre-reading
This can be a continuation of the Warming Up．Let the students discuss the questions set out in the Student's Book．
1. Questioning and answering What do you know about computer?
●Electronic machine capable of performing calculations and other manipulations of various types of data, under the control of a stored set of instructions. The machine itself is the hardware; the instructions are the program or software. Depending upon size, computers are called mainframes, minicomputers, and microcomputers. Microcomputers include desk-top and portable personal computers.
●A multi-function electronic device that can execute instructions to perform a task.
●A device that accepts information, processes it, and supplies an output. A computer usually contains memory, a control unit, arithmetic and logical units, and a means for input and output.
●a programmable hardware component that is controlled by internally stored programs and that can perform substantial computations (including arithmetic and logic operations) without human intervention. A computer typically consists of one or more processing units, memory units, and associated peripheral input and output devices.
●Related to automation and electronic data processing. The Library of Congress commonly classes most computer-related books in HF5548, QA75-76, Z52, T385, and some TK ranges.
●a machine for performing calculations automatically
calculator: an expert at calculation (or at operating calculating machines)
