What is a variable and how is it used in a program

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3.What is a variable and how is it used in a program?
PTS:1REF:6TOP:Critical Thinking4.What is involved in putting a program into production?
Once the program is tested adequately, it is ready for the organization to use. Putting the programinto production might mean simply running the program once, if it was written to satisfy a user’srequest for a special list. However, the process might take months if the program will be run on aregular basis, or if it is one of a large system of programs being developed. Perhaps data-entrypeople must be trained to prepare the input for the new program; users must be trained tounderstand the output; or existing data in the company must be changed to an entirely new formatto accommodate this program. Conversion, the entire set of actions an organization must take toswitch over to using a new program or set of programs, can sometimes take months or years toaccomplish.PTS:1REF:13TOP:Critical Thinking5.How is a decision represented in a flowchart?
PTS:1REF:20TOP:Critical Thinking6.How does a program recognize the end of an input file?
PTS:1REF:21TOP:Critical Thinking7.Discuss two ways that you can enter a program into a computer.
PTS:1REF:22-23TOP:Critical Thinking
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