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Computers and information processing: accuracy, convenience, storage device, speed

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Accuracy of data input is important. What method of data input would be best for each of the following situations and explain why:
Printed questionnaires
Telephone survey
Bank checks
Retail tags
Long documents

Convenience and quality of output are important. Explain what method of output would be best for each of the following situations and explain why:
Hand held computer
Color photograph
Resume
Memorandum
Statistical report
Company annual report

Different types of storage devices are optimal for different situations. Explain what situations are appropriate for the following devices and explain why:
Hard disk
Floppy disk
RAM
CD ROM
Tape

Explain the role of each of the following in determining the speed of a computer:
RAM
Clock speed
Data on hard disk
Data on CD ROM
Data on floppy disk
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Accuracy of data input is important. What method of data input would be best for each of the following situations and explain why:

Printed questionnaires:
With spreadsheets and word processors since data could be entered with relative ease, with or without verification.

For some printed questionnaires, if it is being designed in a form of multiple-choice, there is a technology which allows MC-forms to be read, just like when you doing the SAT-test. These answers can be "read" by the computer because the soft pencil lead that filled in the bubbles or squares conducted electricity between matched pairs of minute electrodes. Even more recently, the marked forms could be scanned optically too.

Telephone survey:
Can manually enter the answer/choice into the computer at the same time the interviewee answered the questions. The interviewer can produce the relevant forms in the computer before hand.

Bank checks:
Should do manually as to ensure the accuracy of the amount and the check numbers, and also serves as a control.

Retail tags:
Scanner/bar code reader, for scanning the bar code - The use of bar coding has been growing dramatically over the last 15 years. With the adoption of UPC as the standard for retail grocery stores in the late 70's, bar codes have become an everyday experience for most people. Bar codes are a fast, easy, and accurate data entry method. The correct use of bar codes can decrease employee time required and increase an organization's efficiency.

Long documents:
Since it is a long document, scanning directly into the computer would be a good choice. Since it save time and also to prevent situation where incomplete input of data, so to increase accuracy.

Convenience and quality of output are important. ...

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