Computer Science: An Overview (13th Edition) (What's New in Computer Science)

13th Edition

ISBN: 9780134875460

Author: Glenn Brookshear, Dennis Brylow

Publisher: PEARSON

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Chapter 6.5, Problem 1QE

What is the difference between an object and a class?

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Chapter 6.4, Problem 6QE

Chapter 6.5, Problem 2QE

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2. Signed Integers Unsigned binary numbers work for natural numbers, but many calculations use negative numbers as well. To deal with this, a number of different methods have been used to represent signed numbers, but we will focus on two's complement, as it is the standard solution for representing signed integers. 2.1 Two's complement • Most significant bit has a negative value, all others are positive. So, the value of an n-digit -2 two's complement number can be written as: Σ2 2¹ di 2n-1 dn • Otherwise exactly the same as unsigned integers. i=0 - • A neat trick for flipping the sign of a two's complement number: flip all the bits (0 becomes 1, or 1 becomes 0) and then add 1 to the least significant bit. • Addition is exactly the same as with an unsigned number. 2.2 Exercises For questions 1-3, answer each one for the case of a two's complement number and an unsigned number, indicating if it cannot be answered with a specific representation. 1. (15 pts) What is the largest integer…

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1. Unsigned Integers If we have an n-digit unsigned numeral dn-1d n-2...do in radix (or base) r, then the value of that numeral is n−1 r² di Σi=0 which is basically saying that instead of a 10's or 100's place we have an r's or r²'s place. For binary, decimal, and hex r equals 2, 10, and 16, respectively. Just a reminder that in order to write down a large number, we typically use the IEC or SI prefixing system: IEC: Ki = 210, Mi = 220, Gi = 230, Ti = 240, Pi = 250, Ei = 260, Zi = 270, Yi = 280; SI: K=103, M = 106, G = 109, T = 10¹², P = 1015, E = 10¹8, Z = 1021, Y = 1024. 1.1 Conversions a. (15 pts) Write the following using IEC prefixes: 213, 223, 251, 272, 226, 244 21323 Ki8 Ki 223 23 Mi 8 Mi b. (15 pts) Write the following using SI prefixes: 107, 10¹7, 10¹¹, 1022, 1026, 1015 107 10¹ M = 10 M = 1017102 P = 100 P c. (10 pts) Write the following with powers of 10: 7 K, 100 E, 21 G 7 K = 7*10³

Chapter 6 Solutions

Computer Science: An Overview (13th Edition) (What's New in Computer Science)

Ch. 6.1 - In what sense is a program in a third-generation...Ch. 6.1 - We can summarize the imperative programming...Ch. 6.1 - Prob. 4QE Ch. 6.2 - Why is the use of a constant considered better...Ch. 6.2 - Prob. 2QE Ch. 6.2 - Prob. 3QE Ch. 6.2 - Identity some common control structures found in...Ch. 6.2 - What is the difference between an array and an...Ch. 6.3 - Prob. 1QE Ch. 6.3 - Prob. 2QE

Ch. 6.3 - Why do many programming languages implement I/O...Ch. 6.3 - Prob. 4QE Ch. 6.3 - Prob. 5QE Ch. 6.4 - Prob. 1QE Ch. 6.4 - What is a symbol table?Ch. 6.4 - What is the difference between a terminal and a...Ch. 6.4 - Prob. 4QE Ch. 6.4 - Prob. 5QE Ch. 6.4 - Prob. 6QE Ch. 6.5 - What is the difference between an object and a...Ch. 6.5 - Prob. 2QE Ch. 6.5 - Suppose the classes PartTimeEmployee and...Ch. 6.5 - What is a constructor?Ch. 6.5 - Why are some items within a class designated as...Ch. 6.6 - Prob. 1QE Ch. 6.6 - Prob. 2QE Ch. 6.6 - Prob. 3QE Ch. 6.7 - Prob. 2QE Ch. 6.7 - Prob. 3QE Ch. 6.7 - Prob. 4QE Ch. 6 - Prob. 1CRP Ch. 6 - Translate the following Python program into the...Ch. 6 - Prob. 3CRP Ch. 6 - Why was it necessary to identify the type of data...Ch. 6 - Prob. 6CRP Ch. 6 - Suppose the function f expects two numeric values...Ch. 6 - Suppose f is a function that returns the result of...Ch. 6 - Prob. 9CRP Ch. 6 - Summarize the distinction between a machine...Ch. 6 - John Programmer argues that the ability to declare...Ch. 6 - Summarize the distinction between declarative...Ch. 6 - Explain the differences between a literal, a...Ch. 6 - a. What is operator precedence? b. Depending on...Ch. 6 - Prob. 16CRP Ch. 6 - What is the difference between the meaning of the...Ch. 6 - Draw a flowchart representing the structure...Ch. 6 - Prob. 19CRP Ch. 6 - Prob. 20CRP Ch. 6 - Draw a flowchart representing the structure...Ch. 6 - Rewrite the following program segment using a...Ch. 6 - Summarize the following rats-nest routine with a...Ch. 6 - Prob. 24CRP Ch. 6 - Prob. 25CRP Ch. 6 - Suppose the variable X in a program was declared...Ch. 6 - Prob. 27CRP Ch. 6 - Why would a large array probably not be passed to...Ch. 6 - Sometimes an actual parameter is passed to a...Ch. 6 - Prob. 32CRP Ch. 6 - What ambiguity exists in the statement X = 3 + 2 ...Ch. 6 - Suppose a small company has five employees and is...Ch. 6 - Prob. 35CRP Ch. 6 - Prob. 36CRP Ch. 6 - Prob. 37CRP Ch. 6 - Prob. 38CRP Ch. 6 - Prob. 39CRP Ch. 6 - Design a set of syntax diagrams that describes the...Ch. 6 - Prob. 41CRP Ch. 6 - Prob. 42CRP Ch. 6 - Add syntax diagrams to those in Question 5 of...Ch. 6 - Prob. 44CRP Ch. 6 - What code optimization could be performed by a...Ch. 6 - Simplify the following program segment Y = 5 if (Y...Ch. 6 - Simplify the following program segment while (X !=...Ch. 6 - In an object-oriented programming environment, how...Ch. 6 - Describe how inheritance might be used to develop...Ch. 6 - What is the difference between the public and...Ch. 6 - a. Give an example of a situation in which an...Ch. 6 - Describe some objects that might be found in a...Ch. 6 - Prob. 53CRP Ch. 6 - Prob. 54CRP Ch. 6 - Prob. 55CRP Ch. 6 - Prob. 56CRP Ch. 6 - Prob. 57CRP Ch. 6 - Prob. 58CRP Ch. 6 - Prob. 59CRP Ch. 6 - In general copyright laws support ownership rights...Ch. 6 - By using a high-level programming language, a...Ch. 6 - Prob. 3SI Ch. 6 - Prob. 4SI Ch. 6 - Prob. 5SI Ch. 6 - Suppose an amateur programmer writes a program for...Ch. 6 - Prob. 7SI

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