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
The most appropriate method of data input for printed questionnaires would be an optical marker reader. The device would simply scans the marks or answers on the questionnaire to provide accurate data.
• Telephone survey
A survey is a pool of information from different knowledgeable sources or people. Since most survey analysis information from more than one source, a voice recognition machine can be used. This machine can turn voice answers into text. An optical reader
• Bank checks
Bank checks have a little magnetic strip inside of them. When this strip is scanned all the information or data on the strip is read. The most appropriate method for inputting bank check would be to use a magnetic ink strip reader. This will enable the user to accurately obtain account information. This will also allow the users to see if the account is overdrawn, closed, or restricted.
• Retail tags
Cashiers can easily input sku numbers or retail tags by using a bar code scanner. This scanner will allow the cashier to quickly and accurately ring customer items without keying in numbers.
• Long documents
Long documents can be inputted by using a photo-scanner. With this type of scanner, pages can be easily copied. Each page of the document is placed on the scanner and scanned.
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
Liquid crystal displays will give hand held computers the best visional quality.
• Color photograph and Resume
Both color photographs and resumes can be displayed on paper. A simple color printer can display both graphics and also documents such as resumes, reports, and letters.