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An Introduction to the Unix Operating System C. Duffy. . I am using this text for Harvard CS 121. The CMOS power is supplied by a small battery, so its contents are not lost when the PC is turned off. . 1. This allows users of most computing platforms to view and print these files. 2.3. components of your computer such as the system unit, mouse, keyboard, monitor etc. I. • ECE Overview • What is Computer Engineering? Petersen. You will learn vocabulary about computer hardware, and computer software. SIPrefixes peta P quadrillion 1015 1000000000000000 tera T trillion 1012 1000000000000 giga G billion 109 1000000000 mega M million 106 1000000 kilo k thousand 103 1000 hecto h hundred 102 100 deca da ten 101 10 (none) one 100 1 deci d tenth 10−1 0.1 centi c hundredth 10−2 0.01 milli m thousandth 10−3 0.001 micro µ millionth 10−6 0.000001 nano n billionth 10−9 0.000000001 Most computer functions are triggered by key commands, many of which cannot be performed with the mouse alone. • A computer is made up of hardware. . Semester Hours Credit, 3. . Software is held either on your computers hard disk, CD-ROM, DVD or on a diskette (floppy disk) and is loaded (i.e. When talking about computer systems, hardware means the physical parts of the computer. Introduction STUDY MATERIALS ON COMPUTER ORGANIZATION (As per the curriculum of Third semester B.Sc. 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