Introduction Number Systems and Conversion
Introduction Number Systems and Conversion
Introduction Number Systems and Conversion
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2 Unit 1Study Guide1. Study Section 1.1, Digital <strong>Systems</strong> <strong>and</strong> Switching Circuits, <strong>and</strong> answer the followingstudy questions:(a) What is the basic difference between analog <strong>and</strong> digital systems?(b)Why are digital systems capable of greater accuracy than analog systems?(c)Explain the difference between combinational <strong>and</strong> sequential switchingcircuits.(d)What common characteristic do most switching devices used in digitalsystems have?(e)Why are binary numbers used in digital systems?2. Study Section 1.2, <strong>Number</strong> <strong>Systems</strong> <strong>and</strong> <strong>Conversion</strong>. Answer the following studyquestions as you go along:(a) Is the first remainder obtained in the division method for base conversionthe most or least significant digit?(b)(c)Work through all of the examples in the text as you encounter them <strong>and</strong>make sure that you underst<strong>and</strong> all of the steps.An easy method for conversion between binary <strong>and</strong> hexadecimal is illustratedin Equation (1-1). Why should you start forming the groups of fourbits at the binary point instead of the left end of the number?(d)Why is it impossible to convert a decimal number to binary on a digit-bydigitbasis as can be done for hexadecimal?
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