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Accuracy in Data Input

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Week Two Individual Assignments

1. Answer the following questions:

Accuracy of data input is important. What method of data input would be best for each of the following situations and explain why:

a. Printed questionnaires:

Optical Mark Recognizer: this finds out answers marked by users and findsout scores.

b. Telephone survey:

Voice recognizer.

- CATI (Computer Assisted Telephone Interviewing)

- CAPI (Computer Assisted Personal Interviewing)

Speaking to a computer requires speech recognition devices.

c. Bank checks:

Check reader. Magnetic ink recognizer.

d. Retail tags:

Barcode reader.

e. Long documents:

Scanner , OSR(Optical character recognition)

Convenience and quality of output are important. Explain what method of output would be best for each of the following situations and explain why:

a. Hand held computer:

for displaying data. Soft copy.

b. Color photograph

color printer, Image processor.

c. Resume

Printer.

d. Memorandum:

word document.

e. Statistical report

Excel.

f. Company annual report

Reporting tools like Access.

Different types of storage devices are optimal for different situations. Explain what situations are appropriate for the following devices and explain why:

a. Hard disk

b. Floppy disk

When you want store small amount of data and move to one

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