Programming Logic & Design Comprehensive
9th Edition
ISBN: 9781337669405
Author: FARRELL
Publisher: Cengage
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each with a specific goal."
Transcribed Image Text:In the process of creating a system, there are typically several separate stages,
each with a specific goal.
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- An organization has selected and is now implementing a software package. Identify three key factors that will determine the cost and time required for implementation.arrow_forward(Data processing) a. A national medical testing laboratory wants a new computer system to analyze its test results. The system must be capable of processing each day’s results as well as retrieving and outputting a printed report of all results meeting certain criteria, such as all results for a particular doctor or for hospitals in a certain state. Determine three or four major program units into which this system could be separated. (Hint: One possible program unit is “Prepare Daily Results” to create each day’s reports.) b. Suppose someone enters incorrect data for a test result, and the error is discovered after the system has entered and stored the data. What program unit is needed to correct this problem? Discuss why such a program unit might or might not be required by most systems. c. A program unit has been developed that allows users to change data that has been entered and stored incorrectly. Discuss the need for including an “audit trail” that would allow reconstructing the changes later as well as when they were made and who made them.arrow_forwardOperating systems are a widely recognized example of system software.arrow_forward
- Electronic components in computers process data using instructions, which are the steps that tell the computer how to perform a particular task.arrow_forwardA(n) _____ is a measure of CPU or computer system performance when per-forming specific tasks.arrow_forward(Practice) You’re responsible for planning and arranging the family camping trip this summer. List a set of subtasks to accomplish this task. (Hint: One subtask is selecting the campsite.)arrow_forward
- Assume that you must take a computer-programming language course next semester. How would you decide which language would be best for you to study? Do you think that a professional programmer needs to know more than one programming language? Why or why not?arrow_forward(Transportation) Road construction requires estimating the expected loads on a road’s pavement over its design life. A common approach for determining this information is to use ESAL values; one ESAL is the load a single 18,000-lb (80,000 N) single-axle truck applies to the road’s surface. The ESAL value for any single-axle vehicle can be approximated by this formula: ESAL=[W18,000]4 ESAL is the equivalent single-axle load. W is the vehicle’s weight (lbs). Using this formula, write, compile, and run a C++ program that determines ESAL values and use it to complete the following chart. The ESAL values should be output in a field width of 10, with six digits after the decimal point.arrow_forward
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